TY - JOUR
T1 - Dialkyldicarbonyl rhenium complexes (η5-C5Me5)Re(CO)2R2, R = Me and Et. X-ray structure of trans-(η5-C5Me5)Re(CO)2Et2
AU - Klahn, A. Hugo
AU - Manzur, Carolina
AU - Toro, Adriana
AU - Moore, Madeleine
N1 - Funding Information:
We thank Professor D. Sutton and C. Leiva for providing the spectroscopic and E.A. data of the dialkyl complexes, and Professor R. Hill and B.J. Palmer who performed for us the low temperature photolysis experiment, at the Chemistry Department of Simon Fraser University, Canada. We also thank Professor A.J. Rest and M. Ollino for sending us their unpublished results, and referee B, for suggesting a plausible free-radical mechanism. This work was supported by D.G.I.P. Uni-versidad Catolica de Valparaiso and FONDECYT-Chile through operating grants to A.H.K. 125.753-95 and 708-92 respectively.
PY - 1996/6/14
Y1 - 1996/6/14
N2 - The compounds cis-(η5-C5Me5)Re(CO)2Me2 and trans-(η5-C5Me5)Re(CO)2Et2 were prepared by alkylation of cis-(η5-C5Me5)Re(CO)2Cl2 using the corresponding organocopper (RCu). Photolysis of cis(η5-C5Me5)Re(CO)2Me2 in frozen toluene-d8 readily produces the trans-(η5-C5Me5)Re(CO)2Me2. All the compounds were characterized by spectroscopy and analyses, and the stereochemistry assigned from examination of ν(CO) IR intensities; additionally trans-(η5-C5Me5)Re(CO)2Et2 was studied by X-ray crystallography. Crystal data: monoclinic P21/m, a = 8.034(8) Å, b = 11.991(8) Å, c = 8.69(2) Å, β = 91.38°, V = 837(2) Å3, Z = 4, λ(Mo Kα) = 0.7107 Å, RF = 0.0285 and wR1 = 0.071 for 1670 measured reflections with 5 < 2θ < 50°.
AB - The compounds cis-(η5-C5Me5)Re(CO)2Me2 and trans-(η5-C5Me5)Re(CO)2Et2 were prepared by alkylation of cis-(η5-C5Me5)Re(CO)2Cl2 using the corresponding organocopper (RCu). Photolysis of cis(η5-C5Me5)Re(CO)2Me2 in frozen toluene-d8 readily produces the trans-(η5-C5Me5)Re(CO)2Me2. All the compounds were characterized by spectroscopy and analyses, and the stereochemistry assigned from examination of ν(CO) IR intensities; additionally trans-(η5-C5Me5)Re(CO)2Et2 was studied by X-ray crystallography. Crystal data: monoclinic P21/m, a = 8.034(8) Å, b = 11.991(8) Å, c = 8.69(2) Å, β = 91.38°, V = 837(2) Å3, Z = 4, λ(Mo Kα) = 0.7107 Å, RF = 0.0285 and wR1 = 0.071 for 1670 measured reflections with 5 < 2θ < 50°.
KW - Alkyls
KW - Crystal structure
KW - Cyclopentadienyls
KW - Rhenium
UR - http://www.scopus.com/inward/record.url?scp=0030583072&partnerID=8YFLogxK
U2 - 10.1016/0022-328x(95)06100-b
DO - 10.1016/0022-328x(95)06100-b
M3 - Article
AN - SCOPUS:0030583072
SN - 0022-328X
VL - 516
SP - 51
EP - 57
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1-2
ER -