Structure and conformational motion of seven-coordinate diorganotin(IV) complexes derived from salen and salan type ligands

Luna-García, Rolando; Damián-Murillo, Berenice M.; Barba, Víctor; Höpfl, Herbert; Beltrán, Hiram I.; Zamudio‐Rivera, Luis S.

doi:10.1016/j.jorganchem.2009.08.016

Cited by 13 publications

(10 citation statements)

References 73 publications

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“…The 119 Sn{ 1 H} NMR spectra of compounds 1 and 2 displayed only one sharp resonance at − 427.0 and − 313.4 ppm, respectively, confirming the existence of one tin species. The first chemical shift falls within the range of heptacoordinate tin species [15] and is closely related to those observed in tin compounds having pentadentate Schiff-type ligands with [N 3 O 2 ] core [5,6]. The second one is more related with hexa-coordinate species; we attributed this difference to the higher flexibility caused by the sixmembered chelate ring present in 2 in comparison with the more favored five-membered ring in 1, where a Sn\ \O interaction is weak in solution.…”

supporting

confidence: 62%

“…In contrast, compounds having ligands with higher open cores such as [DN 2 O 2 ] have not received much attention. For example, for cores enclosing five donor atoms, the reports have mainly addressed to compounds where D = N, yielding [N 3 O 2 ] cores [5,6,7,8]. When a D donor such as an oxygen atom is included in the core, the number of studies fall dramatically down and these reports almost exclusively consider transition metals [9].…”

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confidence: 99%

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Schiff pentadentate ligands based on an [ON 2 O 2 ] core displaying structural isomerism and their coordination to dibutyltin moieties

Perez‐Perez

Alvarado‐Rodríguez

Andrade‐López

et al. 2016

Inorganic Chemistry Communications

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confidence: 62%

mentioning

confidence: 99%

Schiff pentadentate ligands based on an [ON 2 O 2 ] core displaying structural isomerism and their coordination to dibutyltin moieties

Perez‐Perez

Alvarado‐Rodríguez

Andrade‐López

et al. 2016

Inorganic Chemistry Communications

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“…Various types of Schiff bases have been synthesized and extensively studied because of their antifungal, antiviral, antibacterial, anti‐tumour and anti‐inflammatory properties as well as their industrial and medicinal utility . Organotin(IV) complexes of β‐diketones, heterocyclic β‐diketones, Schiff bases, oximes, amino acids, sulfa drugs, etc., have been reported in the literature due to their potential industrial and biological applications .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and antimicrobial activity of triorganotin(IV) derivatives of some bioactive Schiff base ligands

Bhatra

Sharma

et al. 2016

Applied Organom Chemis

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Triorganotin(IV) complexes of the type Me3Sn[OC(R1):CH(CH3)C:NR2OH] and Ph3Sn[OC(R′):CH(CH3)C:NR″OH] (R′ = ─CH3, ─C6H5; R″ = ─(CH2)2─, ─(CH2)3─) have been synthesized by the reactions of trimethyl/phenyltin(IV) chloride with the sodium salt of corresponding Schiff base ligands in unimolar ratio in refluxing tetrahydrofuran. All these compounds have been characterized using elemental analyses and their probable structures have been proposed on the basis of infrared, 1H NMR, 13C NMR, 119Sn NMR and mass spectroscopic studies. In the trimethyltin(IV) derivatives the central tin atom is tetracoordinated, whereas in the analogous triphenyltin(IV)derivatives the central tin atom is pentacoordinated. All these ligands, metal precursors and corresponding triorganotin(IV) complexes have been screened for antimicrobial activities. A comparison of activities of the ligands and their corresponding triorganotin(IV) derivatives has been made. Attempts have also been made to relate the activity to the structure of these compounds.

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“…Extensive literature on those topics has been compiled in the two comprehensive reviews, focusing upon their chemistry, Thermal behavior and biological applications, published byNath et al[214,215]. As far as pentadentate Schiff base ligands are concerned here, most of their organotin(IV) compounds have ligands with N3O2 donor atom set, mainly derived from 2:1 Schiff condensation of salicylaldehyde or substituted salicylaldehydes and diethylenetriamine[216][217][218][219].In such heptacoordinated complexes, the N3O2-pentadentate Schiff base ligand coordinates to the diorganotin(IV) moiety in the equatorial plane of a pentagonal bipyramid. In 2016, Alvarado-Rodríguez and coworkers synthesized two rare examples of dibutyltin(IV) complexes having pentadentate Schiff base ligand containing the N2O3 donor atom set, Bu2SnL 1(33) and Bu2SnL , by condensation of di-n-butyltin oxide with H2L 1 and H2L 2 , respectively[220].…”

mentioning

confidence: 99%

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

Liu

Hamon

2019

Coordination Chemistry Reviews

314

137

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Novel ligand platforms that promote reactivity are of long standing and continued interest in coordination chemistry, with Schiff base ligands and their metal complexes representing one of the most versatile and long standing topics of interest. The synthesis and structure of polydentate Schiff bases and their metal complexes is fascinating, because it reveals a great richness of structural, physico-chemical and catalytic properties. Given the simplicity and ease of access to multidentate Schiff bases and their metal complexes, investigation of such compounds is essential to precise and understand structure-property relationships in order to optimize and improve their use in a wide range of fields, including catalysis, supramolecular chemistry, magnetism, electrochemistry, nanoscience, energy materials, and biological applications. This review highlights the recent developments of pentadentate, hexadentate, heptadentate and macrocyclic Schiff base ligands containing various donor sets made of different combinations of N, O, S or P donor atoms and their metal complexes (essentially mononuclear), as well as presenting synthetic methods and interesting structures of complexes formed by first-to-third row transition metals (from group 4-12), main group elements, lanthanides and actinides. This review is divided into three main sections, each of them corresponding to one type of denticity of the Schiff base under consideration. Each category is described with representative examples according to a periodic order, and emphasis is given to the coordination aspects. Their catalytic, magnetic and biological properties are also outlined. This review that contains 359 references should act as a source of information to researchers interested to work in this domain and stimulate further investigation in this fascinating area of Schiff base coordination compounds.

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Structure and conformational motion of seven-coordinate diorganotin(IV) complexes derived from salen and salan type ligands

Cited by 13 publications

References 73 publications

Schiff pentadentate ligands based on an [ON 2 O 2 ] core displaying structural isomerism and their coordination to dibutyltin moieties

Schiff pentadentate ligands based on an [ON 2 O 2 ] core displaying structural isomerism and their coordination to dibutyltin moieties

Synthesis, characterization and antimicrobial activity of triorganotin(IV) derivatives of some bioactive Schiff base ligands

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

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