Diorganotin(IV) complexes of N-mono-, di- and tri-chloroacetyl, N′,N″-bis(isopropyl) phosphoric triamide

Two new organotin(IV)-phosphoryl complexes: crystal structure and Hirshfeld surface analysis

“…This is in agreement with the deposited analogous structure found in the CSD C 20 H 50 Cl 6 N 6 O 4 P 2 Sn 2 (PAGVUQ) [38], where the five-coordinated tin atom has Sn-Cl axial of 2.414(1) Å and Sn-Cl equatorial of 2.385(1) Å. Moreover, in recently published structure by Pourayoubi et al (2014), similar result was found: Sn-Cl axial of 2.5154(7) Å and Sn-Cl equatorial of 2.3497 (7) Å.…”

“…1) [33,38,39]. Two longer additional Sn-O bonds from the oxygen atoms of two adjacent phosphate groups (2.237(2) and 2.241(2) Å) connect the molecules into one-dimensional coordination polymer ( Index ranges As shown in Fig.…”

Steric and electronic control over the structural diversity of N-(n-pyridinyl) diphenylphosphinic amides (n = 2 and 4) as difunctional ligands in triphenyltin(iv) adducts

“…The considerable negative shi of the y (P]O) in the spectra of C 1 by 24 cm À1 with respect to the free ligand, demonstrates the coordination of the phosphoryl group to tin like in many other complexes of phosphoramidates. [10][11][12][13][14][15]25,26 The y (py ring) of the complex C 1 (1591 cm À1 ) do not differ from the frequencies for the free ligand. Interestingly, an opposite shi was observed for the P]O frequency of C 2 with respect to the free ligand L 2 .…”

“…In this regard, our group has made considerable effort to study the ligation behavior of phosphoramidate ligands containing additional donor sites such as carbonyl or/and N-pyridine particularly toward organotin(IV) compounds. [10][11][12][13][14][15] Much of the interest in organotin(IV) complexes arises from their catalytic and biological activity. [16][17][18][19][20][21] Studies on organotin(IV) derivatives containing mixed N,O-ligands have revealed considerable structural diversity which may lead to complexes with different properties.…”

Nanoparticles of novel organotin(IV) complexes bearing phosphoric triamide ligands

“…The central tin atom presents a diverse coordination environment depending on the different nature of substituents [15]. Hypervalent octahedral geometries were observed for the Sn(IV) atoms in organotin(IV) complexes of O-donor ligands, such as phosphoramidates [16–22], imidodiphosphonic acids [23] and bis(diphenylphosphino) pyridine [24], while a trigonal bipyramidal coordination was found for Sn atoms in thiophosphinates complexes [25]. …”