9 results match your criteria Bulgarian Chemical Communications[Journal]

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Redox properties of alluaudite sodium cobalt manganese sulfates as high-voltage electrodes for rechargeable batteries.

Chem Commun (Camb) 2018 May;54(43):5466-5469

Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria.

Alluaudite sulfates are predicted to be high-voltage electrodes for lithium- and sodium-ion batteries. Herein, we provide the first experimental evidence for the operation of sodium cobalt-manganese sulfate, Na2+2δ(Co0.63Mn0. Read More

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http://xlink.rsc.org/?DOI=C8CC01922C
Publisher Site
http://dx.doi.org/10.1039/c8cc01922cDOI Listing
May 2018
11 Reads

Polyoxometalates as artificial nucleases: hydrolytic cleavage of DNA promoted by a highly negatively charged Zr-substituted Keggin polyanion.

Chem Commun (Camb) 2017 01;53(3):617-620

Department of Chemistry, KU Leuven, Celestijnenlaan 200F and 200G, 3001 Heverlee, Belgium.

A highly negatively charged binuclear Zr-substituted Keggin polyoxometalate [{α-PWOZr(μ-OH)(HO)}] (ZrK 2 : 2) has been shown to promote the hydrolytic cleavage of phosphoester bonds in the supercoiled plasmid pUC19 DNA under physiological pH and temperature, giving relaxed and linear forms of pUC19 as hydrolysis products. The interaction between ZrK 2 : 2 and DNA was experimentally proven by circular dichroism (CD) spectroscopy and P diffusion ordered NMR spectroscopy. Read More

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http://xlink.rsc.org/?DOI=C6CC08555E
Publisher Site
http://dx.doi.org/10.1039/c6cc08555eDOI Listing
January 2017
11 Reads

NMR analysis of weak molecular interactions using slice-selective experiments via study of concentration gradients in agar gels.

Chem Commun (Camb) 2016 Apr;52(31):5418-20

Department of Organic Chemistry, University of Geneva, 1211, Geneva 4, Switzerland.

Weak molecular interactions can be localized and quantified using a single NMR experiment analysing concentration gradients generated in agar gels. The spectra from various cross-sections along the gradient were obtained using a slice-selective pulse sequence realisable with standard NMR equipment. Read More

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http://dx.doi.org/10.1039/c6cc01853jDOI Listing

Adsorption of CO2 on MIL-53(Al): FTIR evidence of the formation of dimeric CO2 species.

Chem Commun (Camb) 2016 Jan 10;52(7):1494-7. Epub 2015 Dec 10.

Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.

FTIR spectra of (12)CO2 and (12)CO2 + (13)CO2 mixtures adsorbed on MIL-53(Al) reveal the formation of highly symmetric dimeric (CO2)2 species connected to two structural OH groups. Read More

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http://dx.doi.org/10.1039/c5cc08677aDOI Listing
January 2016

Formation of N3(-) during interaction of NO with reduced ceria.

Chem Commun (Camb) 2015 Apr;51(26):5668-71

Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.

We show that the first stages of interaction between NO and reduced ceria comprise the formation of azides, N3(-), with simultaneous oxidation of Ce(3+) to Ce(4+). This finding imposes revision on some current views of catalytic NO conversion and may contribute to design of new deNOx materials and processes. Read More

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http://xlink.rsc.org/?DOI=C5CC00500K
Publisher Site
http://dx.doi.org/10.1039/c5cc00500kDOI Listing
April 2015
8 Reads

Ice-mediated coating of macroporous cryogels by carbon nanotubes: a concept towards electrically conducting nanocomposites.

Chem Commun (Camb) 2011 May 18;47(20):5768-70. Epub 2011 Apr 18.

Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev Street 103A, 1113 Sofia, Bulgaria.

Electrically conducting super-macroporous polymer/carbon nanotubes (CNTs) composites have been fabricated with the aid of cryogenic treatment. CNTs are selectively deposited onto the inner surface of interconnected polymer walls surrounding large air-filled pores. The present concept provides highly conducting nanocomposites at a very low nanotubes content. Read More

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http://dx.doi.org/10.1039/c1cc11045dDOI Listing
May 2011
4 Reads
6.834 Impact Factor

Problems in the IR measuring the acidity of zeolite bridging hydroxyls by low-temperature CO adsorption.

Chem Commun (Camb) 2011 Feb 2;47(6):1878-80. Epub 2010 Dec 2.

Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.

Two infrared OH stretching bands are produced after interaction of CO with H-ZSM-5 bridging hydroxyls. These two bands are not due to heterogeneity of the acid sites but arise from Fermi-resonance. Read More

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http://dx.doi.org/10.1039/c0cc04484aDOI Listing
February 2011

Oxidation by CO2 of Au0 species on La2O3-supported gold clusters.

Chem Commun (Camb) 2008 Jan 17(2):175-7. Epub 2007 Oct 17.

Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.

The IR spectra that characterize La(2)O(3)-supported gold clusters show that the original Au(0) species can be oxidized by CO(2) during the catalytic CO oxidation reaction, indicating that CO(2) is the actual gold oxidizing agent. Read More

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http://dx.doi.org/10.1039/b713106bDOI Listing
January 2008
3 Reads

Redox couples in the selective catalytic reduction of NOx with hydrocarbons over Co-ZSM-5 and Ni-ZSM-5 catalysts: an FT-IR study.

Chem Commun (Camb) 2004 Oct 19(19):2200-1. Epub 2004 Aug 19.

Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.

On the basis of IR spectroscopy studies it is concluded that the redox couples Co(2+)/Co(+) and Ni(2+)/Ni(+) operate in the selective catalytic reduction of nitrogen oxides with hydrocarbons over Co-ZSM-5 and Ni-ZSM-5. Read More

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http://dx.doi.org/10.1039/b408061kDOI Listing
October 2004
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