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The molecular and crystal structure of trans-hydridobis(triphenylphosphine)(1,3-di-p-tolyltriazenido)platinum(II)[PtH(PPh3)2(p-CH3C6H4NNNC6H4CH3-p)]
No full textThe structure of the title compd. was detd. at room temp. from 3-dimensional x-ray data collected by counter methods.\ud
The compd. crystd. in the triclinic space group P1 with a 14.649(2), b 15.082(2), c 10.929(1) Å, 110.99(5)°, \ud
102.40(5)°, 84.54(5)°, and Z = 2. Full-matrix least-squares treatment of 4673 obsd. intensities gave an unweighted R of\ud
0.069. The Pt atom has square-planar coordination with Pt-P(1) 2.268(5), Pt-P(2) 2.267(5), and Pt-N(1) 2.09(2) Å. The\ud
presence of the H atom is inferred from ir and 1H NMR data. The triazenido ligand, bonded to the metal through N(1),\ud
lies perpendicular to the coordination plane
Crystal structure of bis(triphenylphosphine)chloro-1,3-di-p-tolyltriazenidopalladium(II)
No full textThe crystal and mol. structures of the title compd. were detd. by x-ray diffraction. The structure was solved by Patterson
methods and refined by least-squares calcns. to an R of 0.06. The crystals are triclinic, space group P1, with a
18.954(2), b 11.850(1), c 11.143(1) Å, 114.97(1), 94.75(1), and 97.51(1)°; d.(exptl.) = 1.36 and d.(calcd.) = 1.33 for
Z = 2. The compd. has square-planar coordination with the phosphine groups trans to each other and the triazenido
group acting as a monodentate ligand. The plane of the triazene N atoms contains the Pd atom. The interaction of the N
-electrons appears to be absent. A possible mechanism for the fluxional behavior of the mol. is suggested
Crystal structure of a mesogenic copper(II) square-planar complex bis[N-p-(n-hexyloxy)phenyl-p-(n-heptyloxy)salicylaldiminato]copper(II).
No full textStructure of cis-chlorobis(triphenylphosphine)-(1,3-di-p-tolyltriazenido)platinum(II)-chloroform, PtCl(PPh3)2(p-MeC6H4NNNC6H4Me-p).CHCl3
No full textThe structure of the title compd. was detd. at room temp. from 3-dimensional x-ray data collected by counter methods
and refined by least-squares techniques to a final R of 0.059 based on 3897 observations above background. The
compd. crystd. in the monoclinic space group P21/a with a 19.725(4), b 16.247(2), c 15.321(2) Å and 105.85(2)°, Z = 4.
The Pt atom has square-planar coordination with Pt-P(1) = 2.289(6), Pt-P(2) = 2.251(7), Pt-Cl = 2.353(7), and Pt-N(1) =
2.11(2) Å. The aryldiazene moiety lies in a plane roughly perpendicular to the coordination plane and its Ph groups are
twisted to relieve steric interactions with the adjacent phosphine Ph groups
Aryltriazenido complexes. Crystal and molecular structure of trans-carbonyl(1,3-di-ptolyltriazenido)bis(triphenylphosphine)iridium(I)
No full textThe structure of the title compd. was detd. by x-ray crystallog. and refined by least-squares to R 0.032 using 2835
independent reflections. The orange crystals of the complex are monoclinic, space group C2/c, with a 22.121, b 19.190,
c 10.111Å, and 92.77°; Z = 4. The triazenido ligand is unidentate and trans to the CO in this square-planar complex.
Ir-N and Ir-C(carbonyl) bond lengths are 2.16 and 1.79Å, resp
Bis N-p-(n-hexyloxy)phenyl,p-(n-eptyloxy) salicylaldiminato palladium (II).(C26H16O3N)2Pd
No full textA novel synthesis and X-ray structure of a new aryldiazene complex: trans-(phenylacetylide)bis(triphenylphosphine)(p-fluorophenyldiazene)platinum(II) tetrafluoroborate
No full textThe title compound [Pt(CCPh)(HNNC6H4F-p)(PPh3)2](BF4) has been synthesized from Pt(HCCPh)(PPh3)2 and p-FC6H4N2BF4, and a mechanism for its formation is proposed; X-ray diffraction studies show that the acetylide ligand is σ-bonded and that the PCCC system is essentially linear, while the diazene ligand has a trans configuration around the NN bond, and the hydrogen-bearing nitrogen atom is coordinated to the platinum. © 1975
Bonding and fluxional behavior of N,N'-di-p-tolylformamidino and 1,3-di-p-tolyltriazenido complexes of palladium(II)and platinum(II)
No full textThe fluxionality of M(PPh3)2Cl(ArNXNAr) and trans-Pt(PPh3)2H(ArNNNAr) (M = Pd(II), Pt(II); Ar = p-MeC6H4; X = CH,\ud
N), is discussed on the basis of 1H NMR, x-ray, and ir studies. The stereochem. non-rigid process is proposed to occur\ud
via a pseudo-pentacoordinate intermediate having both N atoms facing the metal through 2 electron lone pairs. A\ud
different mechanism via a -bonding component in the M-(N ligand) bond is also discussed
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