Organoindium Thiolate Oligomers:  An X-ray Structural Study

Abstract

The reaction of R 3 In (R ) methyl, tert-butyl, xylyl) with bis(tricyclohexyltin) sulfide, 2-methylpropane-2-thiol, 4,6-dimethyl-2-mercaptopyrimidine, cyclopentanethiol, cyclohexanethiol, 2,5-dimethylbenzenethiol, or 2,6-methylbenzenethiol has yielded seven new indium-sulfur complexes: 7), and {Me 2 In[µ-S(2,6-Me 2 )C 6 H 3 ]} 4 (8). These complexes have been studied by 1 H and 13 C NMR spectroscopy, and their structures have been determined by singlecrystal X-ray diffraction techniques. 2-5 form dimeric species with planar (In-S) 2 cores, 6 forms a trimer which adopts a skew-boat conformation, 7 forms a trimer with a planar sixmembered (InS) 3 ring with a secondary In-N interaction, giving rise to a pseudo-fivecoordinate In atom, and 8 forms a tetramer in an extended chair conformation, the first known indium tetramer. Several of the factors of importance to the structures of these compounds, and especially those which lead to the unusual planar derivative 7, will be discussed.

Coordination Polymers of Indium/Copper Selenolates and the Preparation of Metal Selenides

“…The In–N bond distance of about 2.34 Å shows a strong bond and matches with the reported values of In–N(py) bond distances of the complexes such as [Me 2 In{NC 5 H 4 CMeNNC(S)(SMe)}] (2.43 Å), Me 3 In(4‐dimethtylaminopyridine) (2.31 Å) and Me 3 In(5,6‐benzoquinoline) 2 (2.71 Å) . The In–C bond distances and C–In–C angle are similar to the reported complexes . The sum of the angles C 6 –In 1 –C 7 (141 o ), C 6 –In 1 –Se 1 (109.2 o ) and Se 1 –In 1 –C 7 (99.3 o ) is approximately 350 o indicating a distorted trigonal planar environment in which the In atom is elevated at 0.398 Å from the plane comprising of C6, C7 and Se atoms.…”

Synthesis and theoretical study of a mixed-ligand indium(iii) complex for fabrication of β-In2S3 thin films via chemical vapor deposition

“…The molecular structure of [2] showed a trigonal-bipyramidal coordination sphere for the indium ion, where the trigonal basal plane is formed by two sulfur atoms of the dianionic thiolate ligand, and the oxygen atom of the N,O-ß-heteroarylalkenolate ligand while the apical positions are occupied by the nitrogen atom present in the bridging amine group of the dianionic thiolate ligand and one nitrogen atoms of the heteroarylalkenolate ligand. The In-S bond distances (TableS1) in [1] were found to be in the range of 2.404(1)-2.676(2) Å, while the bond lengths of the bridging sulfur atoms in In1-S2 and In1_a-S2 were found to be longer at 2.485(1) Å and 2.676(2) Å respectively than the terminal In1-S1 bond length at 2.404(1) Å.These values correspond well with similar reported values of dimeric, trimeric and oligomeric organoindium compounds [33][34][35][36][37]. The In-N bond length (2.393(5) Å) and In-Cl bond length (2.415(1) Å) in [1] are both within the reported ranges 35,[38][39][40][41].…”

“…These values correspond well to similar reported values of dimeric, trimeric and oligomeric organoindium compounds. [33][34][35][36][37] The In-N bond length (2.393(5) Å) and In-Cl bond length (2.415(1) Å) in [1] are both within the reported ranges. 35,[38][39][40][41] Notably, the three dependent indium sub-units in [1] and their corresponding atoms display uniform bond lengths and angles.…”

From polygons to polyhedra through intermediate structures. A shape measures study of six-atom inorganic rings and clusters

“…It can also be seen how some nearly planar 36-electron groups behave similarly, with also one example of a supertriangle, found in (In t Bu) 3 (S-Me 2 pyrimidine) 3 . 86 We must not forget, however, that a large part of molecules of those families do not follow such a planar distortion pathway, and they are omitted from Fig. 13a since they have substantially puckered conformations, e.g., chairs and boats.…”