Silver(i) 1,2,3-triazol-5-ylidenes [(RCH(2)C(2)N(2)(NMe)Ph)(2)Ag][AgCl(2)] (R = Ph 3a, C(6)H(2)iPr(3) 3b, C(6)H(2)Me(3) 3c) and [(PhCH(2)C(2)N(2)(NMe)R)(2)Ag][AgCl(2)] (R = C(6)H(4)Me 3d, C(6)H(4)CF(3) 3e) were synthesized and subsequently treated with RuHCl(PPh(3))(3) and RuHCl(H(2))(PCy(3))(2). The reaction 3a of with RuHCl(PPh(3))(3) gave RuHCl(PPh(3))(2)(PhCH(2)C(2)N(2)(NMe)Ph) (4a1) as the...

The complexes [Cu(BmMe)]3 x 0.77C4H8O (1), [(BmMe)Ag(PPh3)] (2) and [M[kappa3-H(micro-H)B(tiaz)2](PPh3)] (M= Cu (3), Ag (4); BmMe = bis(2-mercapto-1-methylimidazolyl)borate, H2B(tiaz)2 = dihydrobis(2-mercaptothiazolyl)borate) have been prepared and characterised by X-ray crystallographic and spectroscopic methods. The presence of MH-B interactions in these species has been investigated using in...

Three new Ni(BDC)/2,2'-bipy compounds, Ni2(BDC)(HBDC)2(2,2'-bipy)2 (2), Ni3(BDC)3(2,2'-bipy)2 (3), and Ni(BDC)(2,2-bipy)2.2H2O (5), in addition to the previously reported Ni(BDC)(2,2'-bipy).0.75H2BDC (1) and Ni(BDC)(2,2'-bipy)(H2O) (4) [BDC = 1,4-benzenedicarboxylate; 2,2'-bipy = 2,2'-bipyridine], have been synthesized by hydrothermal reactions. A systematic investigation of the effect of the r...

The magnetic properties of two similar Er(3+) complexes have been investigated. [Er(tpm)3(bipy)] (Htpm = 1,1,1-trifluoro-5,5-dimethyl-2,4-hexanedione and bipy = 2,2'-bipyridine) displays thermally activated slow relaxation of magnetisation under a zero direct-current (DC) field. Under an applied HDC field of 1000 G, [Er(tpm)3(bipy)] exhibits two thermally activated processes with energy barrier...

Formation of silver citrate/citric acid complexed solutions was investigated. Although, silver citrate is minimally soluble in water, it can successfully be dissolved in citric acid solutions. The maximum concentration of Ag(I) in solution is estimated at 23 to 25 g/L if the concentration of citric acid is at least 4 mol/L or higher. The dissolution of silver citrate in citric acid solutions wa...

The synthesis and characterization of the silver(I) chloride complex of formula {[AgCI(CMBZT)(TPTP)(2)] . (MeOH)} (1) (CMBZT = 5-chloro-2-mercaptobenzothiazole, TPTP = tris(p-tolyl)phosphine) is described. Also the structure of the hydrate derivative {[AgCI(TPTP)(3)] . (0.5 . H(2)O)} (2) of the corresponding known anhydrous silver complex (Zartilas et al., 2009), and the polymorph 3 of the know...

Eight bis-bidentate Schiff-base ligands, derived from 3,6-diformylpyridazine and substituted amino-benzenes, have been prepared. A variety of electron donating/withdrawing and/or sterically demanding/undemanding substituents were employed. Two ligands and five of the six pure copper(I) complexes have been structurally characterised. The sterically unhindered ligand derived from 3,5-difluoroanil...

The bis(imino)pyridine scaffold provides support for the synthesis and characterization of unique Ag(I) pincer complexes [{ArN=CPh}(2)(NPh)]Ag(+)(OTf)(-) (Ar = 2,5-(t)Bu(2)C(6)H(3)3; 2,6-(i)Pr(2)C(6)H(3) 4). The bonding interactions between the cation-anion and between the bis(imino)pyridine ligand and the Ag centre are presented. Coordination of pyridine, toluene, 2-butyne and cyclooctene to t...