Lead thiocyanates, coordination polymers

The [Ni(NCS)f,]4 ion is almost perfectly octahedral, with Ni—N distances of around 209.5 pm and N—Ni—N angles around 89.5°. The Ni—N—C and N—C—S entities are practically linear.438,439 In [Ni(NCS)2L2] where L is a R-substituted pyridine, stereochemistry and spin state depend on the type and positions of R.431 While for 2-Me- and 2-Et-pyridine square planar complexes are observed, other pyridins lead to coordination polymers with pseudo-octahedral Ni11 due to N,S-bridging thiocyanate. Ni11 thiocyanato complexes have been studied quite intensively as hosts for inclusion compounds.440"442... 

Safarifard V, Morsali A. Mechanochemi-cal solid-state transformations from a 3D lead(II) chloride triazole carboxylate coordination polymer to its bromide/thiocyanate analogs via anion-replacements precursors for the preparation of lead(II) chlo-ride/bromide/sulfide nanoparticles. Cryst Eng Commun 2012 14(16) 5130. 

Safarifard V, Morsali A. Solid state syntheses of nano lead(II) iodide triazole carboxylate coordination polymer from its bromide/ thiocyanate/chloride analogs via mechanoche-mical crystal to crystal transformations. Inorg Chim Acta 2013 405 203- . 

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