Imperial College London
Alternate

DrPhilipMiller

Faculty of Natural Sciences, Department of Chemistry

Reader in Applied Synthesis
 
 
 
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Contact

 

philip.miller Website

 
 
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Location

 

501kMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Phanopoulos:2016:10.1039/c6dt00170j,
author = {Phanopoulos, A and White, AJP and Long, NJ and Miller, PW},
doi = {10.1039/c6dt00170j},
journal = {Dalton Transactions},
pages = {5536--5548},
title = {Insight into the stereoelectronic parameters of N-triphos ligands via coordination to tungsten(0)},
url = {http://dx.doi.org/10.1039/c6dt00170j},
volume = {45},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A series of new N-triphos tungsten complexes have been synthesised and structurally characterised. The coordination behaviour of a range of N-triphos (N(CH2PR2)3, NP3R) ligands, and a mixed-arm diphosphine-pyridyl (PPNCyh) ligand were explored. The steric and electronic parameters of five N-triphos ligands: NP3Ph, NP3iPr, NP3Cyp, NP3Cyh and NP3PhF2, and the carbon-centred triphos ligand, CH3C(CH2PPh2)3 (MeCP3Ph), were established. Steric parameters were evaluated by analysing the cone angles calculated from X-ray crystal structures, whilst the electron-donating ability of the ligands was determined from 31P–77Se NMR coupling constants of selenium derivatives and the IR carbonyl stretching frequencies across a series of tungsten–carbonyl complexes. In general, electron-rich phosphines formed bidentate complexes while less electron-rich ligands coordinated in a tridentate mode, regardless of steric bulk. An indirect interaction between the apical nitrogen of the ligand and metal centre is implicated for tridentate complexes and is supported through DFT calculations and analysis of N-protonated complexes. Complexes 1, 3, 4, 6–8 and 10 were characterised by single-crystal X-ray crystallography.
AU  - Phanopoulos,A
AU  - White,AJP
AU  - Long,NJ
AU  - Miller,PW
DO  - 10.1039/c6dt00170j
EP  - 5548
PY  - 2016///
SN  - 1477-9226
SP  - 5536
TI  - Insight into the stereoelectronic parameters of N-triphos ligands via coordination to tungsten(0)
T2  - Dalton Transactions
UR  - http://dx.doi.org/10.1039/c6dt00170j
VL  - 45
ER  -
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