TY - JOUR
T1 - Transition metal methylene complexes, VII. Studies on metal–metal bonds, V. Preparation and molecular structure of a carbonylcobalt complex containing a novel carbocyclic μ‐methylene ligand
AU - Creswick, Michael
AU - Bernal, Ivan
AU - Herrmann, Wolfgang A.
AU - Steffl, Isolde
PY - 1980/4
Y1 - 1980/4
N2 - Dicarbonyl(η5‐cyclopentadienyl)cobalt (1) reacts with 2‐diazo‐1,3‐dioxoindane (2) under thermal conditions (boiling benzene) to yield the dinuclear cobalt complex 3 which contains the carbene derived from 2 as a bridging ligand. An x‐ray diffraction study proved that both the cyclopenta‐dienyl rings are oriented trans to each other, which is also true for the two metal–carbonyl groups. While four‐bonded, the methylene carbon is highly distorted from tetrahedral geometry [∢Co(1)C(3)Co(2): 79.0(1)°, ∢C(4)C(3)C(11): 104.3(3)°]. The cobalt — cobalt distance is 247.5(1) pm and the CoC(C5H5) and CoC(CO) distances and angles are normal. The μ‐1,3‐dioxoindane‐2‐ylidene backbone is bent by 2° along the vector joining the two carbonyl carbon atoms of the dione system.
AB - Dicarbonyl(η5‐cyclopentadienyl)cobalt (1) reacts with 2‐diazo‐1,3‐dioxoindane (2) under thermal conditions (boiling benzene) to yield the dinuclear cobalt complex 3 which contains the carbene derived from 2 as a bridging ligand. An x‐ray diffraction study proved that both the cyclopenta‐dienyl rings are oriented trans to each other, which is also true for the two metal–carbonyl groups. While four‐bonded, the methylene carbon is highly distorted from tetrahedral geometry [∢Co(1)C(3)Co(2): 79.0(1)°, ∢C(4)C(3)C(11): 104.3(3)°]. The cobalt — cobalt distance is 247.5(1) pm and the CoC(C5H5) and CoC(CO) distances and angles are normal. The μ‐1,3‐dioxoindane‐2‐ylidene backbone is bent by 2° along the vector joining the two carbonyl carbon atoms of the dione system.
UR - http://www.scopus.com/inward/record.url?scp=84982074766&partnerID=8YFLogxK
U2 - 10.1002/cber.19801130416
DO - 10.1002/cber.19801130416
M3 - Article
AN - SCOPUS:84982074766
SN - 0009-2940
VL - 113
SP - 1377
EP - 1384
JO - Chemische Berichte
JF - Chemische Berichte
IS - 4
ER -