Isocyanide and Phosphine Oxide Coordination in Binuclear Chromium Pacman Complexes
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چکیده
منابع مشابه
Isocyanide and Phosphine Oxide Coordination in Binuclear Chromium Pacman Complexes
The new binuclear chromium Pacman complex [Cr2(L)] of the Schiff base pyrrole macrocycle H4L has been synthesized and structurally characterized. Addition of isocyanide, C≡NR (R = xylyl, tBu), or triphenylphosphine oxide donors to [Cr2(L)] gives contrasting chemistry with the formation of the new coordination compounds [Cr2(μ-CNR)(L)], in which the isocyanides bridge the two Cr(II) centers, and...
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The synthesis and structures of two new octadentate, Schiff-base calixpyrrole macrocycles are presented in which modifications at the meso-substituents (L(1)) or the aryl spacer between the two pyrrole-imine donor compartments (L(2)) are introduced. The outcomes of these changes are highlighted in the structures of binuclear Pacman complexes of these macrocycles, [M(2)(L(1))] and [M(2)(L(2))]. ...
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D iphenyl(l-pyridyl)phosphine sulfide, Ph2pyPS, 1, gives a 1:1 complex (2) with AuCl upon treatm ent with (C4HsS)AuCl. According to an X-ray diffraction analysis, this com pound is isom orphous with the Ph^PS complex. [Ph3PAu]BF4 and 1 give the cationic com plex [Ph;?PAuSPpyPh2]BF4 (3 ) . With two equivalents o f the same reagent the binuclear com plex 4 is generated, in which the metal atoms...
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Most 99mTc/phosphine/isocyanide complexes synthesized to date show preferential uptake by the myocardium of many animal species but not in man. A new complex has been synthesized, [99mTc(DEPE)2(CNR)2], +(DEPIC), where R = t - butyl isocyanide, which in three animal species images the myocardium very well, but in humans it remains primarily in the blood pool. One reason for the difference in the...
متن کاملDissociative electron attachment to coordination complexes of chromium: chromium(0) hexacarbonyl and benzene-chromium(0) tricarbonyl
Here we report the results of dissociative electron attachment (DEA) to gas-phase chromium(0) hexacarbonyl (Cr(CO)6) and benzene-chromium(0) tricarbonyl ((η6-C6H6)Cr(CO)3) in the energy range of 0-12 eV. Measurements have been performed utilizing an electron-molecular crossed beam setup. It was found that DEA to Cr(CO)6 results (under the given experimental conditions) in the formation of three...
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ژورنال
عنوان ژورنال: Organometallics
سال: 2013
ISSN: 0276-7333,1520-6041
DOI: 10.1021/om4009313