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Synthesis, Coordination and Electrochemistry of a Ferrocenyl‐Tagged Aminobisphosphane Ligand
Author(s) -
Navrátil Michal,
Císařová Ivana,
Štěpnička Petr
Publication year - 2021
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202100558
Subject(s) - chemistry , moiety , ferrocene , ligand (biochemistry) , pincer ligand , electrochemistry , metal , cyclic voltammetry , selenide , molecule , stereochemistry , crystallography , crystal structure , medicinal chemistry , coordination complex , pincer movement , organic chemistry , catalysis , biochemistry , receptor , electrode , selenium
Introducing a ferrocene moiety into a molecule results in the incorporation of a metal center and a redox active moiety. This contribution describes the synthesis of FcN(CH 2 PPh 2 ) 2 ( 1 ; Fc=ferrocenyl), a ferrocene analog of the widely studied bis‐phosphane pincer ligands, RN(CH 2 PPh 2 ) 2 . Compound 1 was studied as a ligand in complexes of Group 10 and 11 metal ions. The following compounds were synthesized and characterized using a combination of spectroscopic methods and single‐crystal X‐ray diffraction analysis: the square planar complexes [MX 2 ( 1 ‐κ 2 P , P’ )] (M/X=Ni/Cl, Pd/Cl, Pd/Br, Pd/I and Pt/Cl) and the tetrahedral complexes [M( 1 ‐κ 2 P , P ’) 2 ]X (M/X=Cu/PF 6 , Ag/SbF 6 and Au/SbF 6 ). Furthermore, a pair of open and cyclic digold(I) complexes containing bis‐phosphane 1 as a P,P‐bridging ligand, viz . [(μ(P,P’)‐ 1 )(AuCl) 2 ] and [(μ(P,P’)‐ 1 ) 2 Au 2 ][SbF 6 ] 2 , were isolated. Ligand 1 , the corresponding phosphane selenide 1‐Se and all complexes (except for the poorly soluble [(μ(P,P’)‐ 1 ) 2 Au 2 ][SbF 6 ] and unstable [Ag( 1 ‐κ 2 P , P ’) 2 ][SbF 6 ]) were further analyzed by cyclic voltammetry.