The remarkable propensity for the formation of C–H⋯π(chelate ring) interactions in the crystals of the first-row transition metal dithiocarbamates and the supramolecular architectures they sustain

CrystEngComm ◽  
2020 ◽  
Vol 22 (43) ◽  
pp. 7308-7333 ◽  
Author(s):  
Edward R. T. Tiekink

C–H⋯π(chelate ring) interactions play an important role in assembling first-row transition metal dithiocarbamates in their crystals.


Crystals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 286
Author(s):  
Edward R.T. Tiekink

A search of the Cambridge Structural Database was conducted for pyridyl-substituted dithiocarbamate ligands. This entailed molecules containing both an NCS2− residue and pyridyl group(s), in order to study their complexation behavior in their transition metal and main group element crystals, i.e., d- and p-block elements. In all, 73 different structures were identified with 30 distinct dithiocarbamate ligands. As a general observation, the structures of the transition metal dithiocarbamates resembled those of their non-pyridyl derivatives, there being no role for the pyridyl-nitrogen atom in coordination. While the same is true for many main group element dithiocarbamates, a far greater role for coordination of the pyridyl-nitrogen atoms was evident, in particular, for the heavier elements. The participation of pyridyl-nitrogen in coordination often leads to the formation of dimeric aggregates but also one-dimensional chains and two-dimensional arrays. Capricious behaviour in closely related species that adopted very different architectures is noted. Sometimes different molecules comprising the asymmetric-unit of a crystal behave differently. The foregoing suggests this to be an area in early development and is a fertile avenue for systematic research for probing further crystallization outcomes and for the rational generation of supramolecular architectures.



1973 ◽  
Vol 26 (11) ◽  
pp. 2533 ◽  
Author(s):  
R Chant ◽  
AR Hendrickson ◽  
RL Martin ◽  
NM Rohde

The one-electron oxidation and reduction processes for some 80 dithiocarbamates of Cr, Mn, Fe, Co, Ni, and Cu reveal a marked dependence of redox potential on the metal 3dn electron configuration. For all the complexes examined, the relative ordering of the redox potentials with the dithiocarbamate substituents is remarkably consistent for both oxidation and reduction processes.



2008 ◽  
Vol 875 (1-3) ◽  
pp. 478-485 ◽  
Author(s):  
Sadaf Khan ◽  
Shahab A.A. Nami ◽  
K.S. Siddiqi


Author(s):  
Julio Zukerman-Schpector ◽  
Chien Ing Yeo ◽  
Edward R.T. Tiekink

AbstractA review of the crystallographic literature is presented whereby structures featuring a quasi-six-membered chelate ring of the type {CuCl…HNCS} were evaluated for the presence of intermolecular C–H…π(quasi-chelate) interactions. These are shown to stabilise crystal structures leading to zero-, one-, two- and even three-dimensional architectures. Details of these interactions are described and a comparison to analogous interactions formed intramolecularly has been made. The C–H…π(quasi-chelate) interactions in these structures occur in one-third of structures where such contacts can potentially form.





2019 ◽  
Vol 43 (11) ◽  
pp. 4413-4424 ◽  
Author(s):  
Abdul Kareem ◽  
Shahab A. A. Nami ◽  
Mohd Shoeb Khan ◽  
Shahnawaz Ahmad Bhat ◽  
Azar Ullah Mirza ◽  
...  

Synthesis of self assembled transition metal dithiocarbamates of pyridine-3-carboxamide by conventional as well as in situ methodology was reported. Characterization was done with a variety of spectroscopic techniques. Anticancer and antioxidant activity of ligand and its complexes is also tested.



CrystEngComm ◽  
2008 ◽  
Vol 10 (7) ◽  
pp. 915 ◽  
Author(s):  
Na Liu ◽  
Yan-Qin Wang ◽  
En-Qing Gao ◽  
Zhen-Xia Chen ◽  
Lin-Hong Weng




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