Crystal and molecular structure of dimeric bis[N,N-di-n-propyldithiocarbamato]zinc(II) and the study of exchange-coupled copper(II)-copper(II) pairs in its lattice

Synthesis, Crystal Structures, Magnetic Properties and Photoconductivity of C60 and C70 Complexes with Metal Dialkyldithiocarbamates M(R2dtc)x, where M = CuII, CuI, AgI, ZnII, CdII, HgII, MnII, NiII, and PtII; R = Me, Et, and nPr

“…Ni(R 2 dtc) 2 and Pt(R 2 dtc) 2 have square planar conformation. [23][24][25][26][27] Zn(R 2 dtc) 2 , [33][34][35] Cd(R 2 dtc) 2 , [36,37] and Fe(Et 2 dtc) 2 [38] are dimers with a tetrahedral environment of M II . Mn(Et 2 dtc) 2 is a polymer with an octahedral environment of Mn II .…”

“…Similar geometry of the (NCS 2 ) 2 Zn fragment was reported for Zn(Bnz 2 dtc) 2 with bulky benzyl substituents, [46] whereas pristine Zn(R 2 dtc) 2 with R = Et, nPr, iPr substituents have dimeric structures. [33][34][35] Because of the tetrahedral geometry, only half of each Zn(Et 2 dtc) 2 molecule forms vdW contacts with C 60 ( Table 2). The closest Zn···C(C 60 ) distances are 3.659 and 3.822 Å.…”

Exchange interactions in the copper(II)-N-benzoylglycine (hippuric acid) complex

“…[35][36][37][38][39][40] In many cases, the copper ions form dimers with identical symmetry around the paramagnetic ions and with a shared ligand mediating exchange interaction between those ions. In this case, there is a greater possibility of formation of antiferromagnetically (AFM) coupled dimers, where the singlet (S = 0) state is the ground state and the triplet is thermally populated, than the ferromagnetic (FM) interaction at different site symmetries in bimetallic systems, [41][42][43][44][45][46] as here reported. Electron Paramagnetic Resonance (EPR) has been extensively used to study the electronic structure and the local properties of metal ions, 47 radicals, 48 and other systems bearing an unpaired electron spin.…”

Mixed crystal of bis(μ2‐N,N‐di‐n‐butyldithiocarbamato‐S,S,S′)‐bis(N,N‐di‐n‐butyldithiocarbamato‐S,S′)‐di‐zinc(II) and bis(μ2‐N,N‐di‐n‐butyldithiopercarbamato‐S,O,O′)‐bis(N,N‐di‐n‐butyldithiocarbamato‐S,S′)‐di‐zinc(II)

“…Analogous centrosymmetric dimers shown in scheme 2 were also found in following pure zinc dithiocarbamates having less bulky ligands connected to the nitrogen atoms: bis(µ 2 -N,N-diallyldithiocarbamato-S,S,S')-bis(N,N-diallyldithiocarbamato-S,S')-di-zinc(II) [16], bis(µ 2 -N-butyl-N-ethyldithiocarbamato-S,S,S')-bis(N-butyl-N-ethyldithiocarbamato-S,S')-di-zinc(II) [17] , bis(µ 2 -N-methyl-N-phenyldithiocarbamato-S,S,S')-bis(N-methyl-N-phenyldithiocarbamato-S,S')-di-zinc(II) [18], bis(µ 2 -N,N-di-n-propyldithiocarbamato-S,S,S')-bis(N,N-di-n-propyldithio-carbamato-S,S')-di-zinc(II) [19] and bis(µ 2 -N-ethyl-N-isopropyldithiocarbamato-S,S,S')-bis(N-ethyl-N-isopropyldithiocarbamato-S,S')-di-zinc(II) [20]. In contrast to these compounds the zinc dithiocarbamate structures bis(N,N-dicylohexyldithiocarbamato)zinc(II) [21], bis(N-nbutyl-N-(3,5-di-tert-butyl-2-hydroxybenzyl)dithiocarbamato)zinc(II) [22], bis(N,N-dibenzyldithiocarba-mato) zinc(II) [23], and bis(N-cyclohexyl-N-methyldithiocarbamato)zinc(II) [24] feature more voluminous ligands.…”