A remarkable cis- and trans-spanning dibenzylidene acetone diphosphine chelating ligand (dbaphos).
A remarkable cis- and trans-spanning dibenzylidene acetone diphosphine chelating ligand (dbaphos).
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一种出色的顺式和反式二亚苄基丙酮二膦螯合配体 (dbaphos)。
DOI:
10.1002/chem.201203691
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Jarvis AG
中科院分区:
文献类型:
--
作者:
Jarvis AG
A multidentate and flexible diolefin–diphosphine ligand, based on the dibenzylidene acetone core, namely dbaphos (1), is reported herein. The ligand adopts an array of different geometries at Pt, Pd and Rh. At PtIIthe dbaphos ligand formscis‐andtrans‐diphosphine complexes and can be defined as a wide‐angle spanning ligand.1H NMR spectroscopic analysis shows that the β‐hydrogen of one olefin moiety interacts with the PtIIcentre (an anagostic interaction), which is supported by DFT calculations. At Pd0and RhI, the dbaphos ligand exhibits both olefin and phosphine interactions with the metal centres. The Pd0complex of dbaphos is dinuclear, with bridging diphosphines. The complex exhibits the coordination of one olefin moiety, which is in dynamic exchange (intramolecular) with the other “free” olefin. The Pd0complex of dbaphos reacts with iodobenzene to affordtrans‐[PdII(dbaphos)I(Ph)]. In the case of RhI, dbaphos coordinates to form a structure in which the phosphine and olefin moieties occupy both axial and equatorial sites, which stands in contrast to a related bidentate olefin, phosphine ligand (“Lei” ligand), in which the olefins occupy the equatorial sites and phosphines the axial sites, exclusively.
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影响因子:
2.3
作者:
S. Bernès;R. Toscano;Andrés C. Cano;Olivia García Mellado;C. Álvarez;H. Rudler;J. Daran
通讯作者:
J. Daran
DOI:
10.1039/b101912k
发表时间:
2001
期刊:
Journal of The Chemical Society-dalton Transactions
影响因子:
--
作者:
F. A. Jalón;B. Manzano;Felipe Gómez;Ana M. Lopez;Ana M. Rodríguez;W. Weissensteiner;T. Sturm;J. Mahía;M. Maestro
通讯作者:
M. Maestro
影响因子:
4
作者:
E. S. Tabei;H. Samouei;M. Rashidi
通讯作者:
M. Rashidi
影响因子:
2.3
作者:
HERRMANN, WA;THIEL, WR;SCHERER, W
通讯作者:
SCHERER, W
影响因子:
4
作者:
Amanda G. Jarvis;A. Whitwood;I. Fairlamb
通讯作者:
I. Fairlamb