John, Kevin D.; Miskowski, Vincent M.; Vance, Michael A., Inorganic Chemistry, 1998, vol. 37, # 26, p. 6858 - 6873
摘要:
DOI:
作为产物:
描述:
[K(4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane)][Mo2(C*CSiMe3)4(PMe3)4] 在
air 作用下,
生成 Mo2(C*CSiMe3)4(PMe3)4
参考文献:
名称:
Ground-State and Excited-State C⋮C Stretching Frequencies of Dimetallapolyyne Redox Congeners. Direct Evidence for Metal→Alkynyl π-Back-Bonding
摘要:
Paramagnetic [K(crypt-222)][Mo-2(C=CSiMe3)(4)(PMe3)(4)] ([K(crypt-222]1) is prepared by one-electron reduction of Mo-2(C=CSiMe3)(4)(PMe3)(4) (1) by K(C10H8) in the presence of crypt-222. The nu(C=C) frequencies for I and [K(crypt-222)]1 in their ground states and delta-->delta* electronic excited states are controlled by the occupancy of the delta(M-2) and delta*(M-2) orbitals, lying in the order 1 (delta(2)) > 1* (delta(1) delta(*1)) > [K(crypt-222)]1 (delta(2) delta(*1)) > [K(crypt-222)]1* (delta(1) delta(*2)); this Order indicates that M-->C=CsiMe(3) pi-back-bonding is of increasing importance across this series.