Tridentate NPN Ligands with a Central Secondary Phosphine Oxide Donor and their Corresponding Metal Complexes

被引:1
|
作者
Keske, Eric C. [1 ,2 ]
Sattler, Madeleine O. [1 ]
Lough, Alan J. [1 ]
Morris, Robert H. [1 ]
机构
[1] Univ Toronto, Dept Chem, 80 St George St, Toronto, ON M4K 3Y1, Canada
[2] Trent Univ, Chem Dept, 1600 West Bank Dr, Peterborough, ON K9L 0G2, Canada
来源
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2021年 / 647卷 / 14期
基金
加拿大自然科学与工程研究理事会;
关键词
N-donor; P-donor; ruthenium; nickel; secondary phosphine oxide; pincer;
D O I
10.1002/zaac.202100073
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Three new Ru complexes with N-P(OH)-N donor ligands were synthesized and characterized. A ruthenium complex with a ligand with quinolinyl side arms exhibited monodentate coordination through the phosphorus atom with an intramolecular POH...N(quinolinyl) hydrogen bond but with no interaction between nitrogen donors and the ruthenium center. Two pentamethylcyclopentadienyl ruthenium complexes with a ligand with pyridyl side arms exhibited fac-kappa(3)-NPN' tridentate coordination to the metal center, one with an interionic POH...FPF5 hydrogen bond in the crystal. A paramagnetic nickel [Ni-3(N-P(O)-N)(4)] cluster was also characterized; the crystal structure shows three nickel centers in two different environments. The central nickel is coordinated to four deprotonated ligands, two are bidentate kappa(2)-NO, two are monodentate kappa-O and is connected to the other two nickel centers by two sets of bridging mu(2)-O,P moieties. Non-central nickel centers are each coordinated to one bidentate ligand kappa(2)-PN and one monodentate ligand kappa-P.
引用
收藏
页码:1436 / 1441
页数:6
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