An oscillating C2(2-) unit inside a copper rectangle.
[Cu4(mu-dppm)4(mu4-eta1,eta2-C[triple bond]C-)]2+ has been shown by 31P and 1H NMR studies to undergo two fluxional processes in solution, the oscillation of the C[triple bond]C2- unit inside the copper rectangle and the flipping of the diphosphines, and this has been supported by DFT(B3LYP) calculations.
Lo
Wing-Yin
WY
Centre for Carbon-Rich Molecular and Nano-Scale Metal-Based Materials Research, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, People's Republic of China.
Lam
Chi-Ho
CH
Fung
Wendy Kit-Mai
WK
Sun
Hong-Zhe
HZ
Yam
Vivian Wing-Wah
VW
Balcells
David
D
Maseras
Feliu
F
Eisenstein
Odile
O