Organoruthenium Complexes Containing Phosphinodicarboxamide Ligands

被引:0
作者
Nolla-Saltiel, Roberto [1 ,2 ]
Geer, Ana M. [1 ,3 ]
Sharpe, Helen R. [1 ]
Huke, Cameron D. [1 ]
Taylor, Laurence J. [1 ]
Linford-Wood, Thomas G. [1 ]
James, Ashleigh [1 ]
Allen, Jamie [1 ]
Lewis, William [1 ,4 ,5 ]
Blake, Alexander J. [1 ]
Mcmaster, Jonathan [1 ]
Kays, Deborah L. [1 ]
机构
[1] Univ Nottingham, Sch Chem, Univ Pk, Nottingham NG7 2RD, England
[2] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada
[3] Univ Zaragoza, CSIC, Inst Sintesis Quim & Catalisis Homogenea ISQCH, Dept Quim Inorgan, Pedro Cerbuna 12, Zaragoza 50009, Spain
[4] Univ Sydney, Sch Chem, F11 Eastern Ave, Sydney, NSW 2006, Australia
[5] Univ Sydney, Sydney Analyt, F09 Eastern Ave, Sydney, NSW 2006, Australia
基金
英国工程与自然科学研究理事会;
关键词
phosphinocarboxamide; metallacycle; ruthenium; P ligands; coordination chemistry; X-RAY-STRUCTURE; COORDINATION CHEMISTRY; TRANSFER HYDROGENATION; PHOSPHINECARBOXAMIDE; CUMULENYLIDENE; APPROXIMATION; ALLENYLIDENE; ENERGY;
D O I
10.3390/inorganics11090372
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Ruthenium complexes of phosphinocarboxamide ligands, and their use to form metallacycles using halide abstraction/deprotonation reactions are reported. Thus, [Ru(p-cym){PPh2C(=O)NHR}Cl2; R = iPr (1), Ph (2), p-tol (3)] and [Ru(p-cym){PPh2C(=O)N(R)C(=O)N(H)R}Cl2; R = Ph (4), p-tol (5)] were synthesized from [(p-cym)RuCl2]2 (p-cym = para-cymene) and phosphinocarboxamides or phosphinodicarboxamides, respectively. Single-crystal X-ray diffraction measurements on 1-5 reveal coordination to ruthenium through the phosphorus donor, with an intramolecular hydrogen bond between the amine-bound proton and a metal-bound chloride. Six-membered metallacycles formed by halide abstraction/deprotonation of complexes 4 and 5 afforded [Ru(p-cym){& kappa;2-P,N-PPh2C(=O)N(R)C(=O)NR}Cl] [R = Ph (6), p-tol (7)]. These species exist as a mixture of two rotational isomers in solution, as demonstrated by NMR spectroscopy.
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页数:12
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