نتایج جستجو برای: trans pt

تعداد نتایج: 111664  

2008
Masayuki Kobayashi Shigeyuki Masaoka Ken Sakai

In the title compound, [Pt(C(11)H(8)N)Cl(C(2)H(6)OS)], the S atom of dimethyl sulfoxide is trans to the pyridyl N atom [Pt-S = 2.2181 (11) Å] and the chlorido ligand is trans to the carbon donor of 2-(2-pyrid-yl)phenyl [Pt-Cl = 2.4202 (10) Å]. The [2-(2-pyrid-yl)phen-yl]platinum(II) unit forms a one-dimensional stack along the c axis with two independent inter-planar separations of 3.44 (9) and...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Fiona S Mackay Julie A Woods Pavla Heringová Jana Kaspárková Ana M Pizarro Stephen A Moggach Simon Parsons Viktor Brabec Peter J Sadler

We show by x-ray crystallography that the complex trans, trans, trans-[Pt(N(3))(2)(OH)(2)(NH(3))(py)] (1) contains an octahedral Pt(IV) center with almost linear azido ligands. Complex 1 is remarkably stable in the dark, even in the presence of cellular reducing agents such as glutathione, but readily undergoes photoinduced ligand substitution and photoreduction reactions. When 1 is photoactiva...

2011
Fredrik Lundvall David Stephen Wragg Mats Tilset

In the title compound, [Pt(CH(3))(3)I(C(12)H(12)N(2))], the Pt(IV) atom is six-coordinated in a slightly distorted octa-hedral configuration with one CH(3) group and the I atom forming a near perpendicular axis relative to the square plane formed by the bipyridine ligand and the two remaining CH(3) groups. The CH(3) group trans to the I atom has a slightly elongated bond to Pt compared to the o...

Reaction of [PtMe(C^N)(SMe2)] (C^N = 2-phenylpyridinate (ppy); 1a, C^N = benzo[h]quinolate, (bhq); 1b) with hydrogen peroxide gives the platinum(IV) complexes trans-[PtMe(OH)2(C^N)(H2O)] (C^N = ppy; 3a, C^N = bhq, 3b) bearing platinum-oxygen bonds. The Pt(II) complexes 1a and 1b have 5dπ(Pt)→π*(C^N) MLCT band in the visible region which is used to easily follow the kinetic of its reaction with ...

Journal: :Dalton transactions 2011
Alexander Yu Sokolov Henry F Schaefer

Recently synthesized by the group of Sadler, the platinum(IV) diazido complexes [Pt(N(3))(2)(OH)(2)(L')(L'')] (L' and L'' are N-donor ligands) have potential to be used as photoactivatable metallodrugs in cancer chemotherapy. In the present study optimized structures and UV-Vis electronic spectra of trans,trans,trans- and cis,trans,cis-[Pt(N(3))(2)(OH)(2)(NH(3))(2)] (1t and 1c, respectively) as...

Journal: :Journal of the American Chemical Society 2003
Carl N Iverson Charles A G Carter R Tom Baker John D Scollard Jay A Labinger John E Bercaw

Reactions of chloroplatinum methyl complexes with N-(arylimino)pyrrolide anions afford cis and trans neutral platinum methyl complexes. Isomers with methyl trans to the pyrrolide nitrogen activate benzene C-H bonds at 85 degrees C more than 80 times faster than the corresponding cis isomer. In addition, reactions of platinum dimethyl complexes with N-(arylimino)pyrroles (Ar = 4-substituted phen...

2009
Kwang Ha

In the title complex, [PtBr(CH(3))(C(8)H(12))], the Pt(II) ion is in a distorted square-planar environment defined by the Br and methyl C atoms and the mid-points of the two π-coordinated double bonds of cyclo-octa-1,5-diene. As a result of the different trans influences of the Br atom and the methyl group, the Pt-C bonds trans to the methyl group [2.262 (11) and 2.261 (10) Å] are longer than t...

Journal: :Dalton transactions 2009
Graeme J Moxey Cameron Jones Andreas Stasch Peter C Junk Glen B Deacon William D Woodul Penny R Drago

A series of fluorinated bis(aryl)platinum(II) complexes, cis-[Pt(Ar(f))2(1,5-C6H10)] (Ar(f) = p-C6HF4, p-C6(OMe)F4 or C6H2F(3-)2,4,6) were reacted with the four-membered gallium(I) or indium(I) heterocycles, [:E{[N(Ar)]2CN(C6H11)2}] (E = Ga or In, Ar = C6H3Pr(i)(2-)2,6) under various stoichiometries. These yielded either the 2:1 complexes, cis-[Pt(Ar(f))2{Ga{[N(Ar)]2CN(C6H11)2}}2], trans-[Pt(C6...

2009
Nam-Ho Kim In-Chul Hwang Kwang Ha

The asymmetric unit of the title compound, [PtCl(4)(C(12)H(8)N(2))]·0.5CH(3)CN, contains two crystallographically independent Pt(IV) complexes with very similar geometry and one solvent mol-ecule. In the complexes, each Pt(IV) ion is six-coordinated in a distorted octa-hedral environment by two N atoms of the 1,10-phenanthroline ligand and four Cl atoms. Because of the different trans effects o...

Journal: :Chemical communications 2013
Mengtao Ma Anastas Sidiropoulos Lalrempuia Ralte Andreas Stasch Cameron Jones

Reactions of [Pt(PCy(3))(2)] (Cy = cyclohexyl) with group 12 metal dihalides have afforded the novel metal only Lewis pair (MOLP) complexes, [(Cy(3)P)(2)Pt→MX(2)] (M = Zn or Cd, X = Br or I), or the oxidative addition product, trans-[(Cy(3)P)(2)(I)PtHgI]. The zinc complex represents the first MOLP to contain an unsupported Pt→Zn linkage.

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