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English (UK) Zeitschrift für anorganische und allgemeine Chemie Volume 643, Issue 14 August 2017 Pages 895–902
Igor D. Strelnik, Elvira I. Musina, Svetlana N. Ignatieva, Anna S. Balueva, Tatiana P. Gerasimova, Sergey A. Katsyuba, Dmitry B. Krivolapov, Alexey B. Dobrynin, Christoph Bannwarth, Stefan Grimme, Ilya E. Kolesnikov, Andrey A. Karasik, and Oleg G. Sinyashin
Pyridyl Containing 1,5-Diaza-3,7-diphosphacyclooctanes as Bridging Ligands for Dinuclear Copper(I) Complexes
Zeitschrift für anorganische und allgemeine Chemie Volume 643, Issue 14 August 2017 Pages 895–902
DOI: 10.1002/zaac.201700049
1,5-bis(R)-3,7-bis[2-(pyridine-2’_-yl)ethyl)-1,5-diaza-3,7-diphosphacyclooctanes 1 and 2 and their copper(I) complexes 3 and 4 were developed. The butterfly-shaped copper-iodide core and unusual P,N-chelate and P,P-bridged coordination mode of the heterocyclic ligand in the dinuclear complexes 3 and 4 were revealed. Complexes 3 and 4 display emission in green range of spectra, with lifetimes in a microsecond domain and quantum yields of luminescence in solid-state up to 38%. Thermochromic effects found for the phosphorescence of 4 in solutions are ascribed to rigidochromism.