Photochemical Synthesis of (η6-Arene)chromium Hydrido Stannyl and (η6-Arene)chromium Bis(stannyl) Complexes
- 1 January 1996
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 35 (11) , 3223-3227
- https://doi.org/10.1021/ic951431z
Abstract
Photolysis of (eta(6)-arene)Cr(CO)(3) complexes and HSnPh(3) in aromatic solvents at room temperature has led to two classes of complexes: hydrido stannyl compounds containing the eta(2)-H-SnPh(3) ligand and bis(stannyl) compounds containing two SnPh(3) ligands. The ratio between the two complexes simultaneously produced depends on the choice of the arene. Complexes with different arenes (mesitylene, toluene, benzene, fluorobenzene, and difluorobenzene) have been obtained and characterized including X-ray structures for (eta(6)-C(6)H(3)(CH(3))(3))Cr(CO)(2)(H)(SnPh(3)) (1a), (eta(6)-C(6)H(3)(CH(3))(3))Cr(CO)(2)(SnPh(3))(2) (1b), (eta(6)-C(6)H(5)F)Cr(CO)(2)(SnPh(3))(2) (4b), and (eta(6)-C(6)H(4)F(2))Cr(CO)(2)(SnPh(3))(2) (5b). X-ray crystallography of the last three compounds has given the following results: 1b, monoclinic, space group P2(1)/c (No. 14), a = 13.905(4) Å, b = 18.499(2) Å, c = 17.708(2) Å, Z = 4, V = 4285(1) Å(3); 4b, orthorhombic, space group Pca2(1) (No. 29), a = 16.717(2) Å, b = 18.453(2) Å, c = 25.766(2) Å, Z = 8, V = 7948(2) Å(3); 5b, monoclinic, space group P2(1)/c (No. 14), a = 13.756(2) Å, b = 18.560(2) Å, c = 17.159(2) Å, Z = 4, V = 4372(2) Å(3). The relatively high J((119)Sn-Cr-H) and J((117)Sn-Cr-H) values as well as the X-ray structural data provide evidence for the existence of three-center two-electron bonds in the hydrido stannyl complexes. The (1)H NMR data of the complexes are compared with chromium-arene bond distances, and a sensible trend is observed and discussed.Keywords
This publication has 34 references indexed in Scilit:
- Metal Hydride vs SIDE-ON .sigma.-Bonded Trichlorosilane Complexes of Arene-Chromium Derivatives: (.eta.6-Arene)Cr(CO)(H)2(SiCl3)2Inorganic Chemistry, 1995
- Übergangsmetall‐Stannyl‐Komplexe, 9[1]. Substitutions‐Reaktionen der anionischen Hydrid‐Komplexe [(π‐MeC5H4)(CO)2MnH]– und [(π‐Aromat)(CO)2CrH]–European Journal of Inorganic Chemistry, 1993
- Synthesis, chemistry, and structures of mono-.eta.6-arene complexes of chromium(II) bearing trichlorosilyl and carbon monoxide ligandsOrganometallics, 1992
- Übergangsmetall‐Stannyl‐Komplexe, 31) Metall, Wasserstoff, Zinn‐Dreizentrenbindung bei Hydrido‐Stannyl‐Komplexen der 6. NebengruppeEuropean Journal of Inorganic Chemistry, 1991
- Transition-metal silyl complexesTransition Metal Chemistry, 1991
- .eta.2-Coordination of a tin-hydrogen bond to a transition metal. Molecular structure of (.eta.5-MeC5H4)(CO)2Mn(H)SnPh3Journal of the American Chemical Society, 1989
- Preparation of (.eta.6-toluene)bis(trichlorosilyl)nickel(II) by oxidative addition of silicon-silicon and silicon-hydrogen bonds to nickel atoms and bis(1,5-cyclooctadiene)nickel(0). Extreme lability of the .pi.-toluene ligandOrganometallics, 1982
- Study of the insertion products of manganese in the silicon-hydrogen bond. Nature of the bond and proton exchange in the HMn-SiH systemInorganic Chemistry, 1982
- Metal atom synthesis of .eta.6-toluenebis(F-phenyl)cobalt(II) [.eta.6-C6H5CH3(C6F5)2Co], a new type of .pi.-arene complex. X-ray structure determinationJournal of the American Chemical Society, 1976
- The molecular structures of four substituted stannanes by gas-phase electron diffractionActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1974