Copper-Nickel Heterobimetallic Compounds

An Old Crystallization Technique as a Fast, Facile, and Adaptable Method for Obtaining Single Crystals of Unstable “Li2TCNQF4” and New Compounds of TCNQ or TCNQF4: Syntheses, Crystal Structures, and Magnetic Properties

“…19 Heterospin complexes with Ni(II) possess the combination of spins S = 1 and S = 1/2, which can be considered as analogues to Ni(II)/ Cu(II) heterobimetallic complexes (S = 1, S = 1/2). 20 The Cambridge Structural Database 21 records more than 30 complexes of Ni(II) with TCNQ. Among these complexes, monodentate coordination of TCNQ AR to the Ni(II) central atom is infrequent, having been observed to date only in the complexes [NiL R (TCNQ) 2 ] (L R = 1,8-(C 2 H 4 OH) 2 -1,3,6,8,10,13-hexaazacyclotetradecane), 22 [Ni(cyclam)-(TCNQ) 2 ] (cyclam = 1,4,8,11-tetraazacyclotetradecane), 23 and [Ni(L2)(TCNQ) 2 ](TCNQ)•CH 3 COCH 3 (L2 = pentaazamacrocyclic ligand containing the 1-hexadecyl alkyl chain).…”

“…In addition, the magnetic properties will also be affected by the arrangement of the TCNQ ARs; in the case of the frequently occurring π-dimerization of TCNQ units, their strong antiferromagnetic (AFM) coupling leads to a singlet ground state of the π-dimerized unit . Heterospin complexes with Ni­(II) possess the combination of spins S = 1 and S = 1/2, which can be considered as analogues to Ni­(II)/Cu­(II) heterobimetallic complexes ( S = 1, S = 1/2) …”

Thermodynamic and reactivity studies of a tin corrole–cobalt porphyrin heterobimetallic complex

“…Heterobimetallic complexes featuring metal–metal bonds are interesting compounds possessing unconventional bonding patterns, which enable them to act as catalysts, 1 – 3 magnets, 4 supramolecular building blocks 5 and molecular precursors for chemical vapor deposition (CVD). 6 Transition metal (TM)–tin complexes are perhaps one of the most representative classes of such compounds, given the vast scope of their catalytic applications.…”