Visible and Near-IR Emissions from k2N- and k3N-Terpyridine Rhenium(I) Assemblies Obtained by an [nx1] Head-to-Tail Bonding Strategy

被引：23

作者：

Laramee-Milette, Baptiste ^{[1
]}

Zaccheroni, Nelsi ^{[2
]}

Palomba, Francesco ^{[2
]}

Hanan, Garry S. ^{[1
]}

机构：

[1] Univ Montreal, Dept Chim, 5150 Ch Rampe,Pavillon J-A Bombardier, Montreal, PQ H3T 2B1, Canada

[2] Univ Bologna, Dipartimento Chim Giacomo Ciamician, Via Selmi 2, I-40126 Bologna, Italy

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2017年 / 23卷 / 26期

基金：

加拿大自然科学与工程研究理事会;

关键词：

carbonyl ligands; metallacycles; NIR luminescence; rhenium; self-assembly; FLUORINATED OXAPHOSPHIRANE COMPLEXES; TRANSITION-METAL-COMPLEXES; FLUXIONAL BIDENTATE LIGAND; ONE-POT SYNTHESIS; STRUCTURAL-CHARACTERIZATION; PHOTOPHYSICAL PROPERTIES; MOLECULAR SQUARE; SOLID-STATE; SUPRAMOLECULAR RECTANGLES; TERPYRIDINE COMPLEXES;

D O I：

10.1002/chem.201700077

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An [nx1] head-to-tail bonding strategy has been used for the synthesis of Re-I metallacycles. From a k(3)N-dicarbonyl precursor, a single discrete [4x1] square assembly was isolated and characterized, whereas a k(2)N-tricarbonyl precursor led to two major species, a square and a [3x1] triangular assembly. Solid-state X-ray diffraction study has confirmed the high angular distortion (71 degrees to 96 degrees) of the k(2)N precursors. The electrochemical reversibility of the triangular (5) and square (6, 7) assemblies is increased with respect to that of their precursors. Photophysical investigation has confirmed pronounced red-shifts in the emissions of the k(3)N-dicarbonyl species 4 (935nm) and 7 (980nm), as confirmed by density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations.

引用

页码：6370 / 6379

页数：10