Thermoanalytical Study of Linkage Isomerism in Coordination Compounds. Part 7. A DSC and DFT Investigation of Solid-state Linkage Isomerization in Bis(thiocyanato)-bipyridineplatinum(II) Complex

2017 ◽  
Vol 643 (17) ◽  
pp. 1131-1138
Author(s):  
Fahime Nasouti ◽  
Abbas Eslami
Keyword(s):  
Solid State ◽  
Coordination Compounds ◽  
Thermoanalytical Study ◽  
Linkage Isomerism ◽  
Linkage Isomerization

Formation of di- and polynuclear Mn(II) thiocyanate pyrazole complexes in solution and in the solid state

2018 ◽  
Vol 73 (11) ◽  
pp. 793-801
Author(s):  
Aleksej Jochim ◽  
Christian Näther
Keyword(s):  
Solid State ◽  
Coordination Compounds ◽  
Magnetic Measurements ◽  
Metal Cations ◽  
Chain Compound ◽  
Pyrazole Ligands

AbstractReaction of Mn(NCS)2with pyrazole leads to the formation of three compounds with the compositions Mn(NCS)2(pyrazole)4(1), [Mn(NCS)2]2(pyrazole)6(2) and Mn(NCS)2(pyrazole)2(3). Compound1, already reported in the literature, consists of discrete complexes, in which the Mn(II) cations are octahedrally coordinated by four pyrazole ligands and two terminally N-bonded thiocyanate anions. In compound2each of the two Mn(II) cations are coordinated octahedrally by three pyrazole ligands and one terminal as well as two bridging thiocyanate anions, which link the metal cations into dimers. In compound3also octahedrally coordinated Mn(II) cations are present but they are linked into chainsviacentrosymmetric pairs ofμ-1,3-bridging thiocyanate anions. Upon heating compound1loses the pyrazole co-ligands stepwise and is transformed into the chain compound3viathe dimer2that is formed as an intermediate. Magnetic measurements on compounds2and3reveal dominating antiferromagnetic interactions, as already observed for 1D Mn(NCS)2coordination compounds with pyridine based co-ligands.

The decomposition mechanism of new solid-state 4(5)-aminoimidazole-5(4)-carboxamide coordination compounds

2004 ◽  
Vol 409 (2) ◽  
pp. 145-150 ◽  
Author(s):  
S. Materazzi ◽  
S. Aquili ◽  
C. Bianchetti ◽  
G. D’Ascenzo ◽  
K.M. Kadish ◽  
...  
Keyword(s):  
Solid State ◽  
Coordination Compounds ◽  
Decomposition Mechanism

Coordination compounds of substituted 1,10-Phenanthrolines and related dipyridyls. VII. Complexes of copper(I) and 4,6,4',6'-Tetramethyl-2,2'-bipyridine

1965 ◽  
Vol 18 (9) ◽  
pp. 1339 ◽  
Author(s):  
JR Hall ◽  
MR Litzow ◽  
RA Plowman
Keyword(s):  
Solid State ◽  
Physical Properties ◽  
Copper Atom ◽  
Coordination Compounds ◽  
Donor Nitrogen ◽  
Partial Dissociation

A number of diamagnetic complexes of copper(I) and 4,6,4',6'-tetramethyl-2,2'-bipyridine (tmb) have been prepared and some physical properties measured. The complexes of formula Cu(tmb)2X where X = NO3, ClO4, Br, and I behave as 1 : 1 electrolytes in nitrobenzene and nitromethane, while the complex Cu(tmb)2Cl,H2O apparently undergoes partial dissociation in these solvents. All are expected to have a tetrahedral arrangement of the four donor nitrogen atoms about the copper atom. The mono complexes CuXtmb, where X = Cl, Br, and I, appear to be dimeric in the solid state with halogen bridging, but in solution the chloro and bromo complexes rearrange to varying degrees depending on the solvent, forming the salt-type compounds [Cu(tmb)2][CuX2]. CuItmb is insoluble in all common solvents.

scholarly journals Solid-state supramolecular architectures of a series of Hg(ii) halide coordination compounds based on hydroxyl-substituted Schiff base ligands

CrystEngComm ◽  
2019 ◽  
Vol 21 (41) ◽  
pp. 6301-6312 ◽  
Author(s):  
Taraneh Hajiashrafi ◽  
Shiva Salehi ◽  
Maciej Kubicki ◽  
Antonio Bauzá ◽  
Antonio Frontera ◽  
...  
Keyword(s):  
Schiff Base ◽  
Solid State ◽  
Coordination Compounds ◽  
Theoretical Calculations ◽  
Schiff Base Ligands ◽  
Supramolecular Architectures

Herein, six Hg(ii) coordination compounds containing Schiff base ligands were synthesized, characterized and studied using geometrical and Hirshfeld analyses as well as theoretical calculations.

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