TY  - JOUR
AB  - Reaction of 1,1',3,3'-tetra-tert-butyl-5,5'-dihydropentafulvalene (1) with methyllithium and subsequent treatment with an excess of tetracarbonylnickel leads to the isomeric, paramagnetic complexes (eta-5:  eta-5-(t)Bu4C10H4)(eta-2:  eta-2-(t)Bu4C10H6(CO)2Ni2 (2a) and (eta-5:  eta-2-(t)Bu4C10H5)2(CO)2Ni2 (2b).  Treatment of 2a with Br2/P[C6H5]3, and with I2/P[C6H5]3, respectively, affords by elimination of 1 the compounds (eta-5:  eta-5-(t)Bu4C10H4)(P[C6H5]3)2Ni2X2, with X = Br (3) and with X = I (4), respectively.  By treatment of 2b with bromine the paramagnetic Ni(III)-species (eta-5-(t)Bu2C5H2)((t)Bu2C5H3)NiBr2 (5) is obtained.  The solid state structure of 5 is discussed.
DA  - 1991
DO  - 10.1016/0022-328X(91)80142-7
LA  - ger
IS  - 3
M2  - 425
PY  - 1991
SN  - 0022-328X
SP  - 425-434
T2  - Journal of Organometallic Chemistry
TI  - Tetra-tert-butyl-dihydropentafulvalen als Edukt für para- und diamagnetische Nickelkomplexe
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-17748037
Y2  - 2024-11-25T03:20:44
ER  -