Publications by authors named "De-Suo Yang"

22 Publications

  • Page 1 of 1

Enantioselective recognition of chiral acids by supramolecular interactions with chiral AIEgens.

Chem Commun (Camb) 2021 Nov 23. Epub 2021 Nov 23.

Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China.

Novel chiral AIEgens bearing optically pure amino groups were synthesized and showed excellent discrimination for a series of chiral acidic compounds and amino acids. Interestingly, after supramolecular assembly with 4-sulfocalix[4]arene, the obtained complexes showed enhanced enantioselectivity for chiral acids.
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http://dx.doi.org/10.1039/d1cc05618bDOI Listing
November 2021

Iron-Catalyzed Cycloaddition of Amides and 2,3-Diaryl-2-azirines To Access Oxazoles via C-N Bond Cleavage.

J Org Chem 2021 Feb 14;86(3):2957-2964. Epub 2021 Jan 14.

Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, P. R. China.

A novel and efficient iron-catalyzed cycloaddition reaction using readily available 2,3-diaryl-2-azirines and primary amides is reported. A wide range of trisubstituted oxazoles could be achieved in good yields with good functional group compatibility. In this transformation, two C-N bonds were cleaed and new C-N and C-O bonds were formed.
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http://dx.doi.org/10.1021/acs.joc.0c02843DOI Listing
February 2021

Crystal and Band-Gap Engineering of One-Dimensional Antimony/Bismuth-Based Organic-Inorganic Hybrids.

Inorg Chem 2019 Dec 2;58(24):16346-16353. Epub 2019 Dec 2.

Key Laboratory of Advanced Molecular Engineering Materials, College of Chemistry and Chemical Engineering , Baoji University of Arts and Sciences , No. 1 Hi-Tech Avenue , Baoji 721013 , China.

Hybrid halide perovskites are emerging semiconducting materials with a diverse set of remarkable optoelectronic properties. Besides the widely studied lead halide perovskites, Pb-free metal halides such as Bi- and Sb-containing hybrid organic-inorganic materials have shown potential as semiconductors and have been deemed candidates for optoelectronic devices. Here, we report a series of 1D Sb/Bi-based organic-inorganic hybrid alloys: [4ApyH]SbBiIBr, where 4ApyH stands for the 4-aminopyridine cations. These compounds are assembled by edge-sharing octahedral [MX] units stabilizing 1D chains with organic cations filled in between. The crystallographic data of eight selected complexes show that [4ApyH]SbBiIBr has at least five phases (space group) with the difference metal and halogen content: ([4ApyH]BiI), 2 ([4ApyH]SbBiI), 2/ ([4ApyH]SbI (100 K), [4ApyH]BiIBr, [4ApyH]BiBr, and [4ApyH]SbBr (100 K)), 2/ ([4ApyH]SbBiIBrand [4ApyH]SbIBr), and 2/ ([4ApyH]SbI (298 K) and [4ApyH]SbBr (298 K)). Powder X-ray diffraction shows that the phase of the sample changes with a change of the metal and halogen ratios, and the change law accords with Vegard's law. The optical band gaps are heavily affected by the metal and halide contents, ranging from 1.94 eV for [4ApyH]BiI to 2.73 eV for [4ApyH]SbBr. When Sb substitutes for Bi to form an alloy, the band gap increases from 1.94 for [4ApyH]BiI to 1.67 eV for [4ApyH]SbI, from 2.13 eV for [4ApyH]BiIBr to 2.41 eV for [4ApyH]SbIBr, and from 2.55 eV for [4ApyH]BiBr to 2.73 eV for [4ApyH]SbBr. The conductivity of [4ApyH]SbBiI increased from ∼1.00 × 10 to 2.14 × 10 S cm with an increase of the Sb content. Solution-deposited thin films of the nine complexes show the same (110) orientation, displaying a parallel growth orientation with respect to the substrate. The devices of [4ApyH]SbBiI and [4ApyH]SbI demonstrated stable open-circuit photovoltages of 0.55 and 0.44 V, steady-state short-circuit photocurrent densities of 1.52 and 1.81 mA cm, and light-to-electrical energy conversion efficiencies of 0.29% and 0.30%, respectively.
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http://dx.doi.org/10.1021/acs.inorgchem.9b01439DOI Listing
December 2019

Tracking the dimensional conversion process of semiconducting lead bromide perovskites by mass spectroscopy, powder X-ray diffraction, microcalorimetry and crystallography.

Dalton Trans 2019 Sep 7;48(34):12888-12894. Epub 2019 Aug 7.

Key Laboratory of Advanced Molecular Engineering Materials, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, No. 1, Hi-Tech Avenue, Baoji, Baoji 721013, China. and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China.

The structural information of a material in both the solid state and solution state is essential to the in-depth understanding of the properties of inorganic-organic hybrid materials. A one-dimensional (1D) lead bromide formulated as [H][NH(CH)SS(CH)NH][HO][PbBr] (1) could be converted into a new two-dimensional (2D) complex, [NH(CH)SS(CH)NH][PbBr] (2), by soaking the crystals in water. The isolated 2D compound showed single-layer lead-halide perovskite structures. Electrospray ionization mass spectrometry (ESI-MS) analyses of the reaction solution revealed that the [PbBr] fragments are initially formed from the rapid decomposition of the 1D [PbBr] chains and subsequently reassemble into 2D [PbBr] layers, which was verified by powder X-ray diffraction (PXRD) and microcalorimetry. Because of the decomposition and reassembly process, complex 1 could be used as a precursor to synthesize M-doped 2D lead bromide perovskites, namely, [email protected], [email protected] and [email protected] In addition, preliminary tests indicated that complex 2 exhibited a lower optical band gap (3.25 eV) and higher electrical conductivity (3.2 × 10 S cm) than complex 1 (3.38 eV, 5.4 × 10 S cm).
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http://dx.doi.org/10.1039/c9dt02068cDOI Listing
September 2019

Monodisperse Bismuth-Halide Double Perovskite Nanocrystals Confined in Mesoporous Silica Templates.

Inorg Chem 2019 Jul 20;58(13):8500-8505. Epub 2019 Jun 20.

Key Laboratory of Advanced Molecular Engineering Materials, College of Chemistry and Chemical Engineering , Baoji University of Arts and Sciences , No. 1, Hi-Tech Avenue , Baoji 721013 , China.

Metal halide perovskites have fascinating electronic properties and have already been implemented in various devices. Although the behavior of the properties of lead halide perovskite nanocrystals has been studied, the properties of lead-free perovskite nanocrystals are less well-understood because synthesizing them is still very challenging. Here, a simple and popularizable method has been demonstrated to grow monodisperse bismuth-halide double perovskite nanocrystals, CsAgBiBr (1), inside three kinds of mesoporous silica templates. The size and morphology of nanocrystals depend on the structure and pore size of the template. Structural analysis shows that the nanocrystals of various sizes and morphologies retain the crystal structure of bimetallic perovskite. 1 exhibits different morphologies in the silicon channels of three templates: square nanoparticles in KIT-6, spherical and rodlike particles in SBA-15, and nanowires in MCM-41. UV-vis-NIR and photoluminescence measurements show us the variation of band gap and carrier recombination time due to quantum confinement of nanocrystals in mesoporous silicon materials. The band gaps of nanocrystals in the template exhibit an obvious blue shift compared with that of the bulk sample, and the carrier recombination time is significantly shortened. We show that mesoporous silicon templates can be used to prepare lead-free perovskite nanocrystals, and the controllable preparation of nanocrystals can be achieved by the template's own characteristics. This provides a new idea for us to find new functional materials of lead-free metal halide solid-state light-emitting diodes.
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http://dx.doi.org/10.1021/acs.inorgchem.9b00798DOI Listing
July 2019

Brønsted-Acid-Catalyzed Synthesis of 3-Alkoxy and 3-Sulfamido Indanones via a Tandem Cyclization.

J Org Chem 2019 Jul 24;84(13):8497-8508. Epub 2019 Jun 24.

Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering , Baoji University of Arts and Sciences , Baoji 721013 , China.

Brønsted-acid-catalyzed allylic substitution reactions of the in situ generated 3-hydroxy indanones with alcohols and sulfamides were investigated, which provided a facile route for the synthesis of a large variety of 3-alkoxy and 3-sulfamido indanones. The key intermediates, 3-hydroxy indanones, were obtained through the intramolecular Meyer-Schuster rearrangement of o-propargyl alcohol benzaldehydes. The resulting 3-benzyloxy indanone could be selectively modified by allylic sulfonamidation and reduction reactions.
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http://dx.doi.org/10.1021/acs.joc.9b00791DOI Listing
July 2019

KSO/TEMPO-Induced Cascade Oxidative Cyclization/1,2-Migration of Electron-Deficient Groups: Strategy for the Construction of 1 H-Pyrrol-2(3 H)-ones.

Org Lett 2018 06 4;20(12):3627-3630. Epub 2018 Jun 4.

Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China.

A KSO/TEMPO-induced oxidative cyclization of N-unprotected enaminoesters and enaminones that gave 1 H-pyrrol-2(3 H)-ones in good yields with broad functional group compatibility is reported. This method provides easy access to 1,2-carbon migration of ester or acyl group under transition-metal-free conditions.
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http://dx.doi.org/10.1021/acs.orglett.8b01402DOI Listing
June 2018

Modular 2,3-diaryl-2H-azirine synthesis from ketoxime acetates via CsCO-mediated cyclization.

Org Biomol Chem 2018 06;16(23):4333-4337

Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China.

A modular 2H-azirine synthesis from ketoxime acetates via Cs2CO3-mediated cyclization has been developed. The reaction utilizes easily available starting materials and provides a general synthetic route to 2,3-diaryl-2H-azirines in good to excellent yields under mild conditions, which is complementary to the conventional approaches for the synthesis of 2H-azirines. A gram-scale reaction was performed to demonstrate the scale-up applicability of this synthetic method. Importantly, 2H-azirines can be efficiently converted to various azaheterocycles.
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http://dx.doi.org/10.1039/c8ob00923fDOI Listing
June 2018

Copper-Catalyzed Oxidative Cyclization/1,2-Amino Migration Cascade Reaction.

Org Lett 2018 05 3;20(10):3088-3091. Epub 2018 May 3.

Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P. R. China.

A novel and efficient copper-catalyzed tandem oxidative cyclization/1,2-amino migration of readily available enamino esters for the synthesis of substituted pyrroles has been developed. In this reaction, one C-N bond was cleaved, and two new C-N bonds and one C(sp)-C(sp) bond were constructed in one pot. This catalytic system has the obvious advantages of mild reaction conditions and the use of oxygen as the oxidant. The reaction tolerates a wide range of functional groups and is a reliable method for the straightforward synthesis of valuable aminomethyl-substituted pyrroles in good yields.
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http://dx.doi.org/10.1021/acs.orglett.8b01139DOI Listing
May 2018

Iron-Catalyzed Radical Cycloaddition of 2H-Azirines and Enamides for the Synthesis of Pyrroles.

Org Lett 2018 03 8;20(5):1287-1290. Epub 2018 Feb 8.

Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China.

A novel and efficient Fe-catalyzed radical cycloaddition of 2H-azirines and enamides for the synthesis of substituted pyrroles has been developed. The radical cycloaddition reaction proceeded through a conceptually new Fe(II)-catalyzed homolytic cleavage of C-N bond of 2H-azirines sequential radical cyclization with enamides. The reaction used readily available starting materials, tolerated various functional groups, and afforded valuable triaryl-substituted pyrroles in good to high yields under mild reaction conditions.
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http://dx.doi.org/10.1021/acs.orglett.7b04007DOI Listing
March 2018

Synthesis of Polycarbonyl Pyrroles via KSO-Mediated Oxidative Cyclization of Enamines.

Org Lett 2016 12 15;18(23):6074-6077. Epub 2016 Nov 15.

Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China.

A novel KSO-promoted oxidative cyclization of enamines is described. A variety of enamines having diverse functional groups and substitution patterns react well using KSO as the oxidant in the absence of catalyst. This protocol provides a very simple route for the synthesis of polycarbonyl pyrroles and has the advantages of readily available starting materials, mild reaction conditions, and a wide scope of substrates.
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http://dx.doi.org/10.1021/acs.orglett.6b03060DOI Listing
December 2016

Regioselective Intermolecular [2 + 2]-Cycloaddition of α-Iodo-Unsaturated Ketones Promoted by Diisobutylaluminum Hydride.

Org Lett 2016 09 29;18(18):4554-7. Epub 2016 Aug 29.

Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences , Baoji 721013, China.

The development of intermolecular [2 + 2]-cycloaddition of α-iodo-unsaturated ketones in the presence of diisobutylaluminum hydride (Dibal-H) is reported to produce various trispirocyclic derivatives containing a cyclobutane ring. This sequential lactonization/[2 + 2]-cycloaddition proceeds in high regioselectivity under mild conditions.
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http://dx.doi.org/10.1021/acs.orglett.6b02195DOI Listing
September 2016

Recent developments in the group-1B-metal-catalyzed synthesis of pyrroles.

Org Biomol Chem 2016 Jul;14(30):7136-49

Key Laboratory of Synthesis and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China.

Pyrroles are important synthetic targets as a result of their occurrence in numerous biologically active molecules, their important roles in diverse living processes, and their utility as versatile intermediates. As a consequence, numerous efforts focused on the development of concise and efficient methods for the construction of pyrroles. Compared with other transition metals, the group 1B metals (Cu, Ag and Au) are probably more versatile and widely used for the synthesis of pyrroles in organic chemistry. Considering the importance of both topics in organic synthesis, here we summarize recent achievements in the synthesis of pyrroles catalyzed by monometallic systems which belong to the group 1B metals (Cu, Ag and Au).
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http://dx.doi.org/10.1039/c6ob00962jDOI Listing
July 2016

N'-(5-Bromo-2-hy-droxy-benzyl-idene)-4-methyl-benzohydrazide.

Authors:
De-Suo Yang

Acta Crystallogr Sect E Struct Rep Online 2011 Nov 29;67(Pt 11):o3090. Epub 2011 Oct 29.

Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721007, People's Republic of China.

The mol-ecule of the title compound, C(15)H(13)BrN(2)O(2), displays an E conformation with respect to the C=N double bond and the dihedral angle between the planes of the benzene rings is 3.1 (2)°. An intra-molecular O-H⋯N inter-action generates an S(6) ring. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, forming C(4) chains along the c-axis direction.
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http://dx.doi.org/10.1107/S1600536811043960DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3247477PMC
November 2011

3-Hydr-oxy-N'-(5-hydr-oxy-2-nitro-benzyl-idene)-2-naphthohydrazide.

Authors:
De-Suo Yang

Acta Crystallogr Sect E Struct Rep Online 2009 Nov 4;65(Pt 12):o2978. Epub 2009 Nov 4.

Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721007, People's Republic of China.

The mol-ecule of the title compound, C(18)H(13)N(3)O(5), displays an E configuration with respect to the C=N double bond. The dihedral angle between the benzene ring and the naphthyl system is 1.1 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds, forming a three-dimensional network.
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http://dx.doi.org/10.1107/S1600536809045279DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2971756PMC
November 2009

N'-(5-Hydr-oxy-2-nitro-benzyl-idene)-2-methoxy-benzohydrazide.

Authors:
De-Suo Yang

Acta Crystallogr Sect E Struct Rep Online 2009 Oct 28;65(Pt 11):o2864. Epub 2009 Oct 28.

Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721007, People's Republic of China.

The asymmetric unit of the title compound, C(15)H(13)N(3)O(5), contains two independent mol-ecules. Each mol-ecule displays an E configuration with respect to its C=N double bond. The dihedral angles between the two benzene rings are 11.1 (2) and 10.9 (2)° in the two mol-ecules. In the crystal structure, mol-ecules are linked through inter-molecular O-H⋯O hydrogen bonds, forming chains running along the a axis.
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http://dx.doi.org/10.1107/S1600536809043840DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2971021PMC
October 2009

(E)-4-Chloro-N'-[1-(4-hydroxy-phenyl)-ethylidene]benzohydrazide.

Authors:
De-Suo Yang

Acta Crystallogr Sect E Struct Rep Online 2008 Aug 30;64(Pt 9):o1850. Epub 2008 Aug 30.

Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721007, People's Republic of China.

The mol-ecule of the title compound, C(15)H(13)ClN(2)O(2), displays a trans configuration with respect to the C=N double bond. The dihedral angle between the two benzene rings is 15.1 (3)°. A strong intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains running along [101].
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http://dx.doi.org/10.1107/S1600536808027001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2960571PMC
August 2008

(E)-4-Chloro-N'-(4-hydroxy-benzyl-idene)-benzohydrazide.

Authors:
De-Suo Yang

Acta Crystallogr Sect E Struct Rep Online 2008 Aug 30;64(Pt 9):o1849. Epub 2008 Aug 30.

Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721007, People's Republic of China.

The mol-ecule of the title compound, C(14)H(11)ClN(2)O(2), displays a trans configuration with respect to the C=N double bond. The dihedral angle between the two benzene rings is 12.8 (3)°. In the crystal structure, mol-ecules are linked through inter-molecular O-H⋯O and N-H⋯O hydrogen bonds and C-H⋯π inter-actions, forming a three-dimensional network.
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http://dx.doi.org/10.1107/S1600536808027013DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2960690PMC
August 2008

4-Chloro-N'-(2-hydr-oxy-1-naphthyl-idene)benzohydrazide.

Authors:
De-Suo Yang

Acta Crystallogr Sect E Struct Rep Online 2008 Aug 16;64(Pt 9):o1759. Epub 2008 Aug 16.

Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721007, People's Republic of China.

The mol-ecule of the title compound, C(18)H(13)ClN(2)O(2), displays a trans configuration with respect to the C=N double bond. The dihedral angle between the benzene and naphthyl ring systems is 6.0 (2)°. An O-H⋯N hydrogen bond is observed in the mol-ecular structure. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds and π-π stacking inter-actions [centroid-centroid distance = 3.603 (2) Å], forming chains running along the b axis.
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http://dx.doi.org/10.1107/S1600536808025828DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2960590PMC
August 2008

4-Chloro-N'-(5-chloro-2-hydroxy-benzyl-idene)benzohydrazide.

Authors:
De-Suo Yang

Acta Crystallogr Sect E Struct Rep Online 2008 Aug 16;64(Pt 9):o1758. Epub 2008 Aug 16.

Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721007, People's Republic of China.

The mol-ecule of the title compound, C(14)H(10)Cl(2)N(2)O(2), displays a trans configuration with respect to the C=N double bond and has an intramolecular O-H⋯N hydrogen bond. The dihedral angle between the two benzene rings is 1.4 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains running along the a direction.
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http://dx.doi.org/10.1107/S1600536808025816DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2960552PMC
August 2008

[Determination of fraxinellone in root bark of Dictamnus dasycarpus by RP-HPLC].

Zhongguo Zhong Yao Za Zhi 2006 Jun;31(12):992-4

Department of Chemistry & Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721007, China.

Objective: To develop a RP-HPLC method for determination of fraxinellone in Dictamnus dasycarpus.

Method: RP-HPLC conditions were as follows: AT-LICHROM C18(4.6 mm x 250 mm) column, MeOH-H2O (70:30) as a mobile phase, detection wavelength 240 nm, column temperature 25 degrees C, Flow velocity 0.5 mL x min(-1).

Result: Linear relationship is very good (r = 0.9999) in 0.018-0.18 mg x mL(-1). The average recovery is 98.9%, RSD is 1.2% (n = 4).

Conclusion: The method is simple and repeatable and can be used for quantitative analysis of fraxinellone in root bark of D. dasycarpus.
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June 2006

Kinetics and mechanism of the exothermic first-stage decomposition reaction of 1,3-bis(2,2,2-trinitroethyl)-1,3-diazacyclopentanone-2.

J Hazard Mater 2003 Aug;102(2-3):147-53

Shaanxi key Laboratory of Physico-Inorganic Chemistry, Department of Chemistry, Northwest University, Xian, 710069, Shaanxi, China.

The thermal behavior, mechanism and kinetic parameters of the exothermic first-stage decomposition reaction of the title compound in a temperature-programmed mode have been investigated by means of DSC, TG-DTG and IR. The reaction mechanism was proposed. The kinetic model function in differential form, apparent activation energy (E(a)) and pre-exponential factor (A) of this reaction are (1-alpha)(2), 178.41 kJ mol(-1) and 10(17.06)s(-1), respectively. The critical temperature of thermal explosion of the compound is 184.99 degrees C. The values of DeltaS( not equal ), DeltaH( not equal ) and DeltaG( not equal ) of this reaction are 91.54 J mol(-1)K(-1), 176.86 kJ mol(-1) and 135.83 kJ mol(-1), respectively.
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http://dx.doi.org/10.1016/s0304-3894(03)00179-1DOI Listing
August 2003
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