ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Transition Metal Carbyne Complexes, XVII. Ring-substituted trans-Bromotetracarbonyl(phenylcarbyne) Complexes of Chromium and TungstenThe preparation and spectroscopic properties of a series of ring-substituted trans-bromotetra-carbonyl(phenylcarbyne) complexes Br(CO)4MCR [M = Cr, W; R = C6H4N(CH3)2-(p), C6H4CH3-(p), C6H4OCH3-(p), C6H2(CH3)3-(2,4,6), C6H4CF3-(p), C6H4C6H5-(o), C6H3Cl2-(2,6), C6Cl5] are described. The influence of the substituents on the vCO absorptions and on the 13C n. m. r. signals is discussed. The X-ray structure analysis of trans-Br(CO)4CrCC6H4CF3-(p) reveals the extremely short Cr—Ccarbyne bond length of 168 ± 2 pm.
Notes:
Die Darstellung und die spektroskopischen Eigenschaften einer Reihe von ringsubstituierten trans-Bromotetracarbonyl(phenylcarbin)-Komplexen Br(CO)4MCR [M = Cr, W; R = C6H4N(CH3)2-(p), C6H4CH3-(p), C6H4OCH3-(p), C6H2(CH3)3-(2,4,6), C6H4CF3-(p), C6H4C6H5-(o), C6H3Cl2-(2,6), C6Cl5] werden beschrieben und der Einfluß der Substituenten auf die vCO-Absorptionen und die 13C-NMR-Signale diskutiert. Die Röntgenstrukturanalyse von trans-Br(CO)4CrCC6H4CF3-(p) ergibt für die Cr—CCarbin-Bindung den extrem kurzen Abstand von 168 ± 2 pm.
Additional Material:
5 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19771100107
