نتایج جستجو برای: 605 rh and 168 h

تعداد نتایج: 16883128  

Journal: :Dalton transactions 2010
Andrew J Hallett Christopher J Adams Kirsty M Anderson R Angharad Baber Neil G Connelly Christopher J Prime

Monometallic complexes of the tetrakis(pyrazolyl)borate ligand [ML(2){B(pz)(4)}] {M = Rh, Ir; L(2) = eta-cod, eta-nbd, (CO)(2), (CO)(PPh(3))} have two free pyrazolyl rings which can be coordinated to a second ML(2) unit to give the dimeric compounds [L(2)M{mu-B(pz)(4)}ML(2)](+), and to a metal halide to give heterobimetallic species [L(2)M{mu-B(pz)(4)}M'Cl(2)]. (1)H NMR spectroscopy shows that ...

2011
Ashley L. Huttenstine Edward Rajaseelan Allen G. Oliver Jeffrey A. Rood

The title complex, aqua-[1,3-bis-(2,6-diiso-propyl-phen-yl)imid-az-ol-2-yl-idene](η(4)-cyclo-octa-1,5-diene)rhodium(I) tetra-fluor-ido-borate, [Rh(C(8)H(12))(C(27)H(36)N(2))(H(2)O)]BF(4), exihibits a square-planar geometry around the Rh(I) atom, formed by a bidentate cyclo-octa-1,5-diene (cod) ligand, an N-heterocylcic carbene and an aqua ligand. The complex is cationic and a BF(4) (-) anion ba...

Journal: :Chronic obstructive pulmonary diseases 2016
Hilary Pinnock Ratna Sohanpal

Abbreviations: chronic obstructive pulmonary disease, COPD; quality adjusted life years, QALYs; forced expiratory volume in 1 second, FEV1; forced vital capacity, FVC Citation: Pinnock H, Sohanpal R. Editorial-Chronic obstructive pulmonary disease: reduced nihilism, but there is still a ways to go. Chronic Obstr Pulm Dis (Miami). 2016; 3(3): 605-609. doi: http://dx.doi.org/10.15326/jcopdf.3.3.2...

Journal: :Journal of cataract and refractive surgery 2011
Ian Dooley Sofia Charalampidou John Nolan James Loughman Laura Molloy Stephen Beatty

PURPOSE To evaluate the validity of a keratometry (K)-independent method of estimating effective lens position (ELP) before phacoemulsification cataract surgery. SETTING Institute of Eye Surgery, Whitfield Clinic, Waterford, Ireland. DESIGN Evaluation of diagnostic test or technology. METHODS The anterior chamber diameter and corneal height in eyes scheduled for cataract surgery were meas...

Journal: :Annals of eugenics 1946
S T CALLENDER R R RACE

20. Fisher, R. A.: Cit. by Race, R. R.: An incomplete antibody in human serum. Nature, Lond. 153: 771-772 (1944). 21. Rosenfield, R. E.; Vogel, P.; Gibbel, N.; Sanger, R. and Race, R. R.: A new Rh antibody, anti-f. Brit. med. J. i: 975 (1953). 22. Sanger, R.; Race, R. R.; Rosenfield, R. E.; Vogel, P. and Gibbel, JV..Anti-f and the new Rh antigen it defines. Proc. nat. Acad. Sei. 39: 824-834 (19...

Journal: :Chemical communications 2012
Jonathan D Egbert Steven P Nolan

The complex [Rh(I(t)Bu)(2)HCl] has been shown to be an active catalyst in the hydrosilylation of carbonyl and imine complexes. This reactivity, combined with the previously reported H/D exchange catalyzed by these complexes allows for a one pot, two step reaction using a single catalyst for both H/D exchange and hydrosilylation. Using triethylsilane, [Rh(I(t)Bu)(2)Cl] catalyst, and D(2) gas, de...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...

2012
Antje Meissner Carmen Selle Hans-Joachim Drexler Detlef Heller

In the title complex, [RhCl(C(44)H(32)OP(2))]·CH(3)OH, the Rh(I) ion is coordinated by a naphthyl group of a partially oxidized 2,2'-bis-(diphenyl-phosphan-yl)-1,1'-binaphthyl (BINAP) ligand in a η(4) mode, one P atom of the diphenyl-phosphanyl group and one Cl atom. The P=O group does not inter-act with the Rh(I) ion but accepts an O-H⋯O hydrogen bond from the methanol solvent mol-ecule.

Journal: :Dalton transactions 2015
P A Abramov M N Sokolov A V Virovets S Floquet M Haouas F Taulelle E Cadot C Vicent V P Fedin

New hybrid POM based on Lindqvist-type polyoxometalates [M6O19](8-) (M = Nb, Ta) and organometallic fragment {Cp*Rh}(2+) have been isolated and characterized. X-ray quality crystals of K4[(Cp*Rh)2Nb6O19]·20H2O () and Cs4[(Cp*Rh)2Ta6O19]·18H2O () were obtained from solutions with {Cp*Rh} : [M6O19](8-) stoichiometry 2 : 1. The solution behavior of the hybrid polyoxoanions was studied with ESI-MS ...

Journal: :Chemical communications 2009
Adrian B Chaplin Amalia I Poblador-Bahamonde Hazel A Sparkes Judith A K Howard Stuart A Macgregor Andrew S Weller

A well-characterised 14-electron rhodium phosphine complex, [Rh(PiPr3)3][BArF4], which contains a beta-CH agostic interaction, is observed to undergo spontaneous dehydrogenation to afford [Rh(PiPr3)2(PiPr2(C3H5))][BArF4]; calculations on a model system show that while C-H activation is equally accessible from the beta-CH agostic species or an alternative gamma-CH agostic isomer, subsequent beta...

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