ISSN:
0044-2313
Keywords:
Heteronuclear Metal Complexes
;
Metal - Metal Bonds
;
Copper
;
Carbonyl cobaltate
;
Carbonyl manganate
;
Nitrosyl carbonyl ferrate
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Heteronuclear Coordination Compounds with Metal - Metal Bonds. IX. Amine Copper(I) Carbonyl Metalates with Cobalt, Iron, or ManganeseColourless crystals of the carbonyl copper complex [(NH3)3(CO)Cu][Co(CO)4] (1 a) are formed in the reaction of [Cu(NH3)4]Cl and Na[Co(CO)4] (T 〈 - 8°C, pCO = 1 bar); above -5°C and under N2-atmosphere 1 a converts to [(NH3)2CuCo(CO)4] (C), which serves as a starting material for the synthesis of new copper cobaltates: the amines N-amino piperidine, N,N-dimethyl ethylenediamine (dmed) and N-benzyl N,N′-dimethyl ethylenediamine (bn-dmed) replace NH3 to form [(C5H10N—NH2)3CuCo(CO)4] (1 b), [(dmed)CuCo(CO)4] (1 c), [(bn-dmed)CuCo(CO)4] (1 d) the Cu—Co-bond remaining intact. [(NH3)2CuFe(CO)3NO] (2 a) is isosteric with C; it is synthesized from [Cu(NH3)4]Cl and Na[Fe(CO)3NO] in aqueous solution; 2 a reacts with N,N,N′,N′-tetramethyl ethylenediamine (tmed) to form [(tmed)(NH3)CuFe(CO)3NO] (2b). The [Mn(CO)5]- ion reacts with ammine copper ions to form the tetranuclear cluster [{(NH3)CuMn(CO)5}2] (3). All new compounds have been investigated by X-ray structure analysis.
Notes:
Farblose Ionenkristalle des Carbonyl-kupfer-Komplexes [(NH3)3(CO)Cu][Co(CO)4] (1 a) entstehen bei der Reaktion von [Cu(NH3)4]Cl und Na[Co(CO)4] (T 〈 - 8°C, 1 bar CO-Druck); oberhalb -5°C und unter N2-Atmosphäre entsteht aus 1 a [(NH3)2CuCo(CO)4] (C), von dem ausgehend weitere Cobaltate zugänglich sind: Die Amine N-Amino-piperidin, N,N-Dimethyl-ethylendiamin (dmed) und N-Benzyl-N′,N′-dimethyl-ethylendiamin (bn-dmed) verdrängen NH3 unter Erhalt der Cu—Co-Bindung zu [(C5H10N—NH2)3CuCo(CO)4] (1 b), [(dmed)CuCo(CO)4] (1 c), [(bn-dmed)CuCo(CO)4] (1 d). Das zu C isostere [(NH3)2CuFe(CO)3NO] (2 a) entsteht bei der Reaktion von [Cu(NH3)4]Cl und Na[Fe(CO)3NO] in wäßriger Lösung; mit N,N,N′,N′-Tetramethylethylendiamin (tmed) wird aus 2 a [(tmed)(NH3)CuFe(CO)3NO] (2 b) erhalten. Mit dem [Mn(CO)5]--Ion bildet sich dagegen unter den für 2 a angegebenen Reaktionsbedingungen der ammoniakärmere, heteronukleare Vierkerncluster [{(NH3)CuMn(CO)5}2] (3). Alle neuen Verbindungen sind durch Einkristallstrukturanalyse gesichert.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19966220815
