Citation

BibTex format

@article{Omoruyi:2021:10.1016/j.jorganchem.2020.121650,
author = {Omoruyi, U and Page, SJ and Apps, S and White, AJP and Long, NJ and Miller, PW},
doi = {10.1016/j.jorganchem.2020.121650},
journal = {Journal of Organometallic Chemistry},
pages = {1--12},
title = {Synthesis and characterisation of a range of Fe, Co, Ru and Rh triphos complexes and investigations into the catalytic hydrogenation of levulinic acid},
url = {http://dx.doi.org/10.1016/j.jorganchem.2020.121650},
volume = {935},
year = {2021}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The coordination chemistry of the N-triphos ligand (NP3Ph, 1b) has been investigated with range of Fe, Co and Rh precursors and found to form either tridentate or bidentate complexes. Reaction of NP3Ph with [Rh(COD)(CH3CN)2]BF4 resulted in the formation of the tridentate complex [Rh(COD)(κ3 NP3Ph)]BF4 (3) in the solid state, however, in solution a bidentate complex predominates in more polar solvents. Reaction of NP3Ph with Fe carbonyl precursors revealed the formation of the bidentate complexes [Fe(CO)3(κ2-NP3Ph)Fe(CO)4] (4) and [Fe(CO)3(κ2-NP3Ph)] (5), while reaction with FeBr2 resulted in the paramagnetic bidentate complex [Fe(Br)2(κ2-NP3Ph)] (6). Reaction of NP3Ph with CoCl2 gave a dimeric Co species [(κ2-NP3Ph)CoCl(κ1,κ2-NP3Ph)CoCl3] (7), while Zn powder reduction of NP3Ph Co halides resulted in the formation of the tridentate complexes of the type: [Co(X)(k3-NP3Ph)]. The related triphos Ru complex, [Ru(CO3)(CO)(κ3-CP3Ph)] (2), has also been isolated and characterised. Preliminary catalytic hydrogenation of levulinic acid (LA) was conducted with 2 and 3. The Ru complex was found to be catalytically active, giving high conversions of LA to form gamma valerolactone (GVL) and 1,4-pentandiol (1,4-PDO), while 3 was found to be catalytically inactive. In situ catalytic testing with 1b and Fe(BF4)2.6H2O resulted in low conversions of LA while a combination of 1b and Co(BF4)2.6H2O gave higher conversions 75% yields of GVL.
AU - Omoruyi,U
AU - Page,SJ
AU - Apps,S
AU - White,AJP
AU - Long,NJ
AU - Miller,PW
DO - 10.1016/j.jorganchem.2020.121650
EP - 12
PY - 2021///
SN - 0022-328X
SP - 1
TI - Synthesis and characterisation of a range of Fe, Co, Ru and Rh triphos complexes and investigations into the catalytic hydrogenation of levulinic acid
T2 - Journal of Organometallic Chemistry
UR - http://dx.doi.org/10.1016/j.jorganchem.2020.121650
UR - https://www.sciencedirect.com/science/article/pii/S0022328X20305532?via%3Dihub
UR - http://hdl.handle.net/10044/1/85290
VL - 935
ER -