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X‐ray Structure of a Ruthenium Dinuclear Complex Incorporating 4,4′‐Bis(cyanamidophenylethynyl)benzene as a Ligand, a Conjugated Bridge Two Nanometers in Length
Author(s) -
Sondaz Elodie,
Jaud Joel,
Launay JeanPierre,
Bonvoisin Jacques
Publication year - 2002
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 - 10.1002/1099-0682(200208)2002:8<1924::aid-ejic1924>3.0.co;2-y
Subject(s) - chemistry , monoclinic crystal system , sonogashira coupling , ruthenium , crystallography , crystal structure , conjugated system , ligand (biochemistry) , coupling reaction , terpyridine , ion , bipyridine , stereochemistry , metal , palladium , organic chemistry , catalysis , biochemistry , polymer , receptor
The reaction of [Ru(bpy)(tpy)(Ipcyd)] + (bpy = 2,2′‐bipyridine, tpy = 2,2′:6′,2′′‐terpyridine, Ipcyd = 4‐iodophenylcyanamide anion) with diethynylbenzene in a Sonogashira cross‐coupling reaction gives an unprecedentedly long and conjugated dinuclear complex [{[Ru(bpy)(tpy)] 2 (µ‐dcpeb)}(BPh 4 ) 2 ]· 4(PhCH 3 ) (dcpeb = dicyanamidophenylethynylbenzene dianion). The crystal structure data are as follows: crystal system monoclinic, space group P 2 1 / c , with a = 12.6960(3), b = 34.0960(10), c = 15.3540(4) Å, β = 110.7381(15)°, V = 6215.8(3) Å 3 , and Z = 2. The structure was refined to a final R factor of 0.063. The metal ions are separated by a through‐space distance of 24.9 Å. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)