Role of the ancillary ligand in controlling the lysozyme affinity and electronic properties of terpyridine fac-Re(CO)3 complexes

The lysozyme binding affinity and the electronic properties of [ReX (CO)(3)(terpy-kappa N-2(1),N-2)] (X = Br- and triazolate(COOCH2CH3,CF3)) were reported. The triazolate complex was prepared in a [3 + 2] cyclo-addition click reaction. The bromo compound reacted with lysozyme affording adducts with Re(CO)(3)(+) fragments, while the triazolate compound persisted. A red shift of the MLCT band of the triazolate compound in progressively less polar solvents may be due to the negative solvatochromism.

Automated summary

The lysozyme binding affinity and electronic properties of [ReX (CO)(3)(terpy-κN-2(1),N-2)] (X = Br− and triazolate(COOCH2CH3,CF3)) were reported, with the triazolate compound showing a red shift of the MLCT band in less polar solvents possibly due to negative solvatochromism. The triazolate complex was prepared through a [3 + 2] cyclo-addition click reaction, while the bromo compound reacted with lysozyme forming adducts with Re(CO)(3)(+) fragments.