Synthesis, Structure, and Properties of Coordination Polymers with Layered Transition‐Metal Thiocyanato Networks. Issue 19 (9th June 2015)

• Record Type: Journal Article
• Authors: Werner, Julia; Tomkowicz, Zbigniew; Reinert, Thorben; Näther, Christian
• Is Part Of: European journal of inorganic chemistry. Issue 19(2015)
• Page Start: 3066
• Page End: 3075
• Publication Date: 2015-06-09
• Subjects: Layered compounds -- Polymers -- Thermal properties -- Magnetic properties; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201500176
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: Reaction of 4‐ tert ‐butylpyridine ( t BP) with transition‐metal thiocyanates leads to the formation of compounds of composition [M(NCS)2 ( t BP)4 ] [M = Mn (1‐Mn ), Fe (1‐Fe ), Co (1‐Co ), Ni (1‐Ni )] that consist of discrete complexes, in which the metal centers are octahedrally coordinated by two terminal thiocyanato anions and four t BP ligands. If less t BP is used in the synthesis, two compounds of composition [M(NCS)2 ( t BP)2 ] n with M = Co (2‐Co ) and Ni (2‐Ni ) are obtained, in which the metal centers are linked into a 2D network by single thiocyanato anions. Thermal decomposition of1‐Co leads to the formation of an additional modification of [Co(NCS)2 ( t BP)2 ] (3‐Co ). Magnetic measurements of2‐Ni and2‐Co reveal that2‐Ni shows a ferromagnetic phase transition at T c = (14.8 ± 0.1) K and2‐Co shows a transition to the magnetic state with uncompensated magnetic moment at (3.15 ± 0.03) K. Abstract : New layered thiocyanato coordination polymers of composition [M(NCS)2 (4‐ tert ‐butylpyridine)2 ] n (M = Ni, Co) were prepared and investigated for their magnetic properties. The Ni compound shows a ferromagnetic transition whereas the Co compound shows a transition to a magnetic state with uncompensated magnetic moment.