Diaquadichlorodiphenyltin(IV) 18-crown-6

Abstract

Key indicatorsSingle-crystal X-ray study T = 168 K Mean '(C±C) = 0.004 A Ê R factor = 0.028 wR factor = 0.069 Data-to-parameter ratio = 16.7For details of how these key indicators were automatically derived from the article, see

New Tetranuclear and Mononuclear Oxalato Organotin (Iv) Complexes With Monocyclohexylammonium as Adverse Cation: Synthesis and Infrared Study

“…The 2 extra water molecules are lattice. D contains the adduct SnPh2Cl2.2H2O which has yet been reported by [10] with an octahedral environment around the tin centre while considering the complex-anion [C2O4SnPh2Cl2.2H2O] 2-, the suggested structure is dimeric with bridging CyNH3 + cations(N-H…O) and oxalates linked SnPh2Cl2.2H2O via the water molecules (Figure 4). For E the tin centre is monocoordinated by five hydrogenoxalates and is linked to one phenyl leading to octahedral environment while considering the complex-anion [SnPh(HC2O4)5] 2-.…”

Aqua(trifluoroacetato)triphenyltin–15-crown-5 (2/1)

“…The tin-water bond distance [Sn← O(water) = 2.407 (1) Å] in the title compound is somewhat shorter than the distances found in the other aquacarboxylatotriorganotin complexes, but are much longer than those found in the diaquadichlorodiorganotin adducts of 18-crown-6, i.e. [(CH 3 ) 2 SnCl 2 ] 2 •C 12 H 24 O 6 (Amini et al, 1984) (Amini et al, 1994b) (Amini, Amirreza et al, 2002) owing to the weaker Lewis acidity of the triorganotin acceptor.…”

Dichloridodiphenylbis(thiourea-κS)tin(IV)

“…Organotin (IV) compounds exhibiting biological (e.g antitumour) activity have also been reported (Nath et al, 2001;Pellerito & Nagy, 2002 (Sow et al, 2012), but is in the range of other Sn-S bonds reported for tin(IV) structures containing thiourea ligands (Donaldson et al, 1984;Wirth et al, 1998). (Amini et al, 2002), two adducts in which the Cl atoms are not involved in hydrogen bonding, it appears that in (I) the intermolecular hydrogen bonding has led to a weakened Sn-Cl1 bond and a concomitant strengthening of Sn-Cl2. Moreover, the strength of Sn-Cl2 in comparison with examples of other Sn-Cl bonds where the halogen is not involved in hydrogen bonding suggests that the intramolecular hydrogen bonds are weaker than suggested by their interatomic separation.…”

“…For organotin(IV) compounds exhibiting biological activity, see: Nath et al (2001); Pellerito & Nagy (2002). For chloridotin(IV) complexes, see: Amini et al (2002); Mü ller et al (2008). For tin(IV) complexes containing thiourea groups, see: Donaldson et al (1984); Sow et al (2012); Wirth et al (1998).…”