Producción Científica Profesorado

Coordination diversity in tin compounds with bis(benzoxazole)phenol as a polydentate ligand: Synthesis and crystal structure studies.



Alvarado Rodríguez, José Guadalupe

2018

Coordination diversity in tin compounds with bis(benzoxazole)phenol as a polydentate ligand: Synthesis and crystal structure studies. Raúl Segovia-Pérez, José G. Alvarado-Rodríguez, Susana Rojas-Lima, Heraclio López-Ruiz, Noemí Andrade-López, Vojtech Jancik, Julián Cruz-Borbolla, Diego Martínez-Otero. Journal of Coordination Chemistry, 71 (2018) no. 22, 3790-3805. https://doi.org/10.1080/00958972.2018.1528498.


Abstract


The reaction of 2,6-bis(benzoxazolyl)-4-tert-butylphenol (HL) with [nBuxSnCl4?x] (x?=?0, 1) in 1:1 stoichiometry yielded the tin coordination complexes [(HL)SnnBuxCl4?x] [x?=?0 (1); x?=?1 (2)]. Deprotonation of HL was performed using reagents having groups with high basicity such as nBuLi or [Sn{N(SiMe3)2}2]. These basic reagents prompted the coordination of the ligand in its anionic form, yielding the complexes [(thf)2Li(L)SnCl4] (3) and [(L)Sn{N(SiMe3)2}] (4), respectively. The molecular structure of HL displayed an intramolecular hydrogen bond OH?N and a planar arrangement of the bis(benzoxazolyl)phenolic system. In the molecular structures of both complexes containing HL an intramolecular hydrogen bond of NH?O type was also present. The coordination of the ligand in either neutral or anionic form is described by a ?O,?N chelate mode toward Sn. All complexes displayed bis(benzoxazolyl)phenolic moieties close to planar; the least planar system was observed in 4 that was also studied by DFT methods.



Producto de Investigación




Artículos relacionados

Study on the intramolecular transannular chalcogentin interactions in dithiastannecine compounds.

Ni(II) and Pd(II) organometallic and coordination complexes with a new tridentate N,N,O-donor ligand...

Structural differences in eight- and ten-membered heterocyclic tin compounds displaying transannular...

Six-membered ring chelate complexes of Pd(II) and Pt(II) derived from di-(2-pyridyl)pyrimidin-2-ylsu...

Synthesis and Relative Stability of a Series of Compounds of Type [Fe(II)(bztpen)X]+, Where bztpen =...

Hypervalence at tin(IV) by transannular bonding of sulfur in an eight-membered ring: The case of dib...

Hypervalence in germanium compounds containing the tetracylic moiety {S(C6H3S)2O}Ge via OGe transann...

Synthesis and crystal structure of the N-8-(diphenyl-hydroxy-2-aminomethylpyridine)borane

Five-membered ring chelate complexes of Ni(II), Pd(II) and Pt(II) derived of di-(2-pyridyl)-N-ethyli...

Pyrite?Arsenopyrite Galvanic Interaction and Electrochemical Reactivity