Indium(III), lead(II), gold(I) and copper(II) complexes with isophthaloylbis(thiourea) ligands

THEORETICAL AND EXPERIMENTAL INVESTIGATION OF PYRIDYL-THIOUREA DERIVATIVES AS IONOPHORES FOR Cu(II) ION DETECTION

“…The interaction distance of L1 via C=O and C=S towards Cu (II) are 2.027 Å and 2.520 Å respectively. The obtained distances were in the same region as reported by [31,39]. This showed that L1 has the highest strength to bind with Cu 2+ followed by L2.…”

2,6-Dipicolinoylbis(N,N-dialkylthioureas) as versatile building blocks for oligo- and polynuclear architectures

“…Charge compensation is achieved by the additional coordination of acetato ligands (in the case of the lanthanide ion) or by the formation of a triscomplex with the Ba 2+ center (a structural motif that is similar to the one, which has been found for the In 3+ chelate of an isophthaloylbis(thioureato) ligand). 29 The 4 ]Cl} ∞ (9). The Dy 3+ ions of the trinuclear {DyCu 2 (L a ) 2 } 3+ units coordinate each two terephthalato ligands, which connect the molecular subunits along the crystallographic a axis.…”

AgI Metallacoronates and HgII Metallacryptates Derived from a Catechol‐Based Aroylbis(N,N‐diethylthiourea)

“…The coordination chemistry of aroyl( N , N ‐dialkylthioureas) has been dominated for a long time by metal complexes with bidentate benzoylthioureas, HL benz Because of their hard oxygen and soft sulfur donor atoms and an acidic amido group, such compounds are versatile ligands and form stable complexes with a large number of metal ions. However, the structural coordination chemistry of the HL benz ligands as well as of the related bis(thioureas) H 2 L meta or H 2 L para has mainly focused on metal ions that prefer square‐planar or pseudo‐planar coordination environments such as Ni 2+ , Pd 2+ ,, Pt 2+ ,, and Cu 2+ . Additionally, a few examples of tris complexes with M 3+ ions have been reported, and the coordination chemistry of rhenium and technetium with such ligands is relatively well explored .…”

“…Despite the fact that aroylthioureas should possess a high affinity to thiophilic metal ions, surprisingly less is known about this area of their coordination chemistry. A survey of the literature reveals only a few reports of aroylthiourea complexes with thiophilic ions such as Ag + , Au + ,, Hg 2+ , or Cu + . Nevertheless, some of these complexes show very interesting structural characteristics, for example, a discrete 26‐membered bimetallamacrocycle of Hg 2+ ions with {L para } 2– ligands is formed, in which the linear coordination preference of mercury(II) ions for the sulfur donor atoms is established .…”