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Selenium(IV) fluoride and oxofluoride anions

The three Se(+IV) fluoride and oxofluoride anions, SeF5 ?, SeOF3 ? and SeO2F?, have been studied using experimental and theoretical methods. The first crystal structures of a well-isolated undistorted SeF5 ? and of an oxotrifluoro-chalcogenite anion are reported.

出版机构:Elsevier Science

刊物名称:Journal of Fluorine Chemistry

出版时间:2010

ISSN:0022-1139

数据源:报刊文摘

1H NMR study of temperature-induced phase separation in solutions of poly(N-isopropylmethacrylamide-co-acrylamide) copolymers

1H NMR spectroscopy was applied to investigate temperature-induced phase separation in solutions of poly(N-isopropylmethacrylamide-co-acrylamide) [P(IPMAm/AAm)] random copolymers in D2O, D2O/ethanol and D2O/acetone. The NMR relaxation behaviour of water (HDO) was also examined.

出版机构:Elsevier Science

刊物名称:European Polymer Journal

出版时间:2010

ISSN:0014-3057

数据源:报刊文摘

Self-association of cyclic oligonucleotides through G:T:G:T minor groove tetrads

G?T mismatches can form minor groove aligned tetrads (G:C:G:T or G:T:G:T) of similar structure and stability to those formed by G?C Watson?Crick base pairs.Minor groove aligned tetrads resulting from the association of Watson?

出版机构:Elsevier Science

刊物名称:Bioorganic & Medicinal Chemistry

出版时间:2010

ISSN:0968-0896

数据源:报刊文摘

Fabaceae Polysaccharides. III. Galactomannan from Astragalus cicer seeds

Seeds of Astragalus cicer L. (Fabaceae) afforded a galactomannan (5.90% yield of seed mass) of molecular weight 1064 kDa, solutions of which had high viscosity [?] 925.

出版机构:Springer US

刊物名称:Chemistry of Natural Compounds

出版时间:2010

ISSN:0009-3130

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Partial depolymerization of pectin by a photochemical reaction

Complex heterogeneous polysaccharides that comprise pectin were partially depolymerized by a photochemical reaction using ultraviolet light in the presence of titanium dioxide catalyst.

出版机构:Elsevier Science

刊物名称:Carbohydrate Research

出版时间:2010

ISSN:0008-6215

数据源:报刊文摘

Almost Ideal 1D Water Diffusion in Imogolite Nanotubes Evidenced by NMR Relaxometry

The longitudinal proton relaxation rates R1 of water diffusing inside synthetic aluminium silicate imogolite nanotubes are measured by fast field-cycling NMR for frequencies between 0.02 and 35 MHz at 25, 37 and 50 ?C.

出版机构:WILEY‐VCH Verlag

刊物名称:ChemPhysChem

出版时间:2010

ISSN:1439-4235

数据源:报刊文摘

Replication protein A 32 interacts through a similar binding interface with TIPIN, XPA, and UNG2

The 32kDa subunit of replication protein A (RPA32) is involved in various DNA repair systems such as nucleotide excision repair, base excision repair, and homologous recombination. In these processes, RPA32 interacts with different binding partners via its C-terminal domain (RPA32C; residues 172?

出版机构:Elsevier Science

刊物名称:The International Journal of Biochemistry & Cell Biology

出版时间:2010

ISSN:1357-2725

数据源:报刊文摘

Ceramic cells for high pressure NMR spectroscopy of proteins

pplication of high pressure to biological macromolecules can be used to find new structural states with a smaller specific volume of the system. High pressure NMR spectroscopy is a most promising analytical tool for the study of these states at atomic resolution.

出版机构:Elsevier Science

刊物名称:Journal of Magnetic Resonance

出版时间:2010

ISSN:1090-7807

数据源:报刊文摘

Solid-State NMR Characterization of Wilkinson's Catalyst Immobilized in Mesoporous SBA-3 Silica

The Wilkinson's catalyst [RhCl(PPh3)3] has been immobilized inside the pores of amine functionalized mesoporous silica material SBA-3 and The structure of the modified silica surface and the immobilized rhodium complex was determined by a combination of different solid-state NMR methods.

出版机构:WILEY‐VCH Verlag

刊物名称:Chemistry - A European Journal

出版时间:2010

ISSN:0947-6539

数据源:报刊文摘

NMR metabolic profile of human follicular fluid

The aim of this work is to identify the metabolic profile of FF samples exhaustively using High Resolution Nuclear Magnetic Resonance (NMR). A total of 30 FF samples from oocyte donors (<35 years) were analysed.

出版机构:John Wiley & Sons, Ltd.

刊物名称:NMR in Biomedicine

出版时间:2010

ISSN:0952-3480

数据源:报刊文摘