Theoretical studies of n-membered ring chelate complexes of Ni(II), Pd(II) and Pt(II) derived from bidentate phosphorus ylides

Samiee, Sepideh; Mahdavifar, Zabiollah

doi:10.1016/j.poly.2014.01.029

Cited by 9 publications

(4 citation statements)

References 53 publications

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“…In 2014, Samiee and his co‐worker confirmed that the structure of [R 2 P(CH 2 ) n PRC(H)C(O)R)MX 2 ] (R = Me, Ph; M = Ni, Pt and Pd and X = Cl, Br, I; n = 1, 2, 3) complexes are square planar. In these structures, two halogen atoms are oriented in cis position . Thus according to this reports, we considered the square planar structures for [Y 1 PtCl 2 ] and [Y 2 PtCl 2 ] ( Y 1 = Ph 2 PCH 2 PPh 2 C(H)C(O)C 6 H 4 ‐m‐Br and Y 2 = Ph 2 PCH 2 PPh 2 C(H)C(O)C 6 H 4 ‐p‐CN) complexes.…”

Section: Resultsmentioning

confidence: 99%

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Pallada‐ and platinacycle complexes of phosphorus ylides; synthesis, X‐ray characterization, theoretical and electrochemical studies and application of Pd(II) complexes as catalyst in Suzuki‐Miyaura coupling reaction

Sabounchei

Sedghi

Hashemi

et al. 2017

Applied Organom Chemis

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The new unsymmetrical phosphonium salts [Ph 2 PCH 2 PPh 2 CH 2 C(O)C 6 H 4 R]Br (R= m-Br (S 1 ) and p-CN (S 2 )) were synthesized in the reaction of 1,1bis(diphenylphosphino)methane (dppm) and BrCH 2 C(O)C 6 H 4 R (R= m-Br and p-CN) ketones, respectively. Further treatment with NEt 3 gave the α-keto stabilized phosphorus ylides Ph 2 PCH 2 PPh 2 C(H)C(O)C 6 H 4 R (R= m-Br (Y 1 ) and p-CN (Y 2 )). These ligands were reacted with [MCl 2 (cod)] (M= Pd and Pt; cod= 1,5cyclooctadiene) to give the pallada-and platinacycle complexes [MCl 2 (Ph 2 PCH 2 PPh 2 C(H)C(O)C 6 H 4 R)] (M= Pd, R= m-Br (3); R= p-CN (4) and M= Pt, R= m-Br (5); R= p-CN (6)). Cyclic voltammetry, elemental analysis, IR and NMR ( 1 H, 13 C and 31 P) spectroscopic methods were used for characterization of the obtained compounds. Further, the structure of complexes 3 and 4 were characterized crystallographically. Palladacycles 3 and 4 were proved to be excellent catalysts for the Suzuki-Miyaura coupling reactions of various aryl chlorides and arylboronic acids in mixed DMF/H 2 O media. Also, the bonding situations between two interacted fragments [PtCl 2 ] and Y 1 and Y 2 ligands in platinacycles 5 and 6 were investigated based on DFT method by using NBO, EDA and ETS-NOCV analysis.

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Section: Resultsmentioning

confidence: 99%

“…The result show that the optimized bond lengths and bond angles for [Y 1 PtCl 2 ] and [Y 2 PtCl 2 ] are same and these data are in good agreement with those which recently reported with Samiee and his co‐worker for [(Ph 2 P(CH 2 ) 2 PPh 2 CHC(O)CH 3 )PtCl 2 ] complexes (see Table ) …”

Section: Resultsmentioning

confidence: 99%

Pallada‐ and platinacycle complexes of phosphorus ylides; synthesis, X‐ray characterization, theoretical and electrochemical studies and application of Pd(II) complexes as catalyst in Suzuki‐Miyaura coupling reaction

Sabounchei

Sedghi

Hashemi

et al. 2017

Applied Organom Chemis

View full text Add to dashboard Cite

show abstract

“…Samiee and Mahdavifar examined the structural and electronic properties of a series of transition metal complexes of bidentate phosphorus ylides of the following general formula [(R 2 P(CH 2 ) n PR 2 C(H)C(O)R)MX 2 ]. 307 A computational study by Xie and co-workers investigated the reactivity of a cationic methylene complex [(2,6-bis(di-tert-butylphosphinito)pyridine)Ir(CH 2 )] 1 with PMe 3 . 308 …”

Section: Coordination Chemistrymentioning

confidence: 99%