Crystal Structure of a Trinuclear Mercury(II) Cyanide Complex of Tetramethylthiourea, [{(Tetramethylthiourea)2Hg(CN)2}2·Hg(CN)2]

Dinuclear and polymeric Hg(II) complexes with 1-(2-furoyl)thiourea derivatives: Their crystal structure and related properties

“…The This is in accordance with the findings on most of the thiourea complexes reported [29,30,65]. In addition to the frequency, the vibration shows a 25 significant intensity decrease, which is also an evidence of the coordination bond formation.…”

“…In order to examine the thermal stability of the two complexes, thermogravimetric (TG) and differential thermogravimetric (DTG) analyses (DTG) were carried out for compounds HgCl 2 -FBFT and HgCl 2 -FBT between 30 25 and 700 °C, under nitrogen flow (Fig. 11, a and b).…”

“…Nevertheless, in both types of complexes, mercury(II) exhibits a tetrahedral distorted geometry [13,29,[30][31][32][33].…”

Dicyanidobis(N,N′-dimethythiourea-κS)mercury(II)

“…1, Table 1). The bond distances and bond angles are in agreement with those reported for related compounds (Ahmad et al, 2009;Altaf et al, 2010;Jiang et al, 2001;Lobana et al, 2008;Mufakkar et al, 2010;Nawaz et al, 2010;Popovic et al, 2000;Wu et al, 2004). The SCN 2 moiety of dmtu is planar [to within 0.002 (1) In the crystal packing of the title complex, symmetry-related molecules are connected via intermolecular N-H···N hydrogen bonds, involving the thiourea NH atoms and the N atom of the CN -anions (Fig.…”

“…Recently, we have reported the crystal structures of a number of cyanido complexes of d 10 metal ions with L-type ligands, including the crystal structure of a trinuclear complex, [{(tmtu) 2 Hg(CN) 2 } 2 . Hg(CN) 2 ] (tmtu = tetramethylthiourea), which presents a unique example of a Hg(CN) 2 bridged mercury(II)-thione complex (Ahmad et al, 2009;Altaf et al, 2010;Fettouhi et al 2010;Hanif et al, 2007). Herein, we report on the crystal structure of the title mercury cyanide complex of N,N′-di-…”