Abstract
Employing fast time-resolved infrared (TRIR) spectroscopy we have characterized CpRe(CO)2(n-heptane), CpRe(CO)2(Xe), and CpRe(CO)2(Kr) (Cp = η5-C5H5) at or above room temperature in n-heptane, supercritical Xe, and Kr solution. The reactivity of CpRe(CO)2(n-heptane) with CO (k2 = 2.1 (±0.5) x 103 mol-1 dm3 s-1) shows this complex to be the least reactive of the reported organometallic alkane complexes. We report a trend in reactivity of the early transition metal alkane complexes. CpRe(CO)2(Xe) and CpRe(CO)2(Kr) are also shown to have significant stability. CpRe(CO)2(Xe) is less reactive toward CO than all of the reported alkane complexes except CpRe(CO)2(n-heptane).
| Original language | English |
|---|---|
| Pages (from-to) | 7521-7525 |
| Number of pages | 5 |
| Journal | Journal of the American Chemical Society |
| Volume | 119 |
| Issue number | 32 |
| DOIs | |
| Publication status | Published - Aug 13 1997 |
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Remarkable stability of (η5-C5H5)Re(CO)2L (L = n-heptane, xe, and kr) : A time-resolved infrared spectroscopic study of (η5-C5H5)Re(CO)3 in conventional and supercritical fluid solution. / Sun, Xue Zhong; Grills, David C.; Nikiforov, Sergei M.; Poliakoff, Martyn; George, Michael W.
In: Journal of the American Chemical Society, Vol. 119, No. 32, 13.08.1997, p. 7521-7525.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Remarkable stability of (η5-C5H5)Re(CO)2L (L = n-heptane, xe, and kr)
T2 - A time-resolved infrared spectroscopic study of (η5-C5H5)Re(CO)3 in conventional and supercritical fluid solution
AU - Sun, Xue Zhong
AU - Grills, David C.
AU - Nikiforov, Sergei M.
AU - Poliakoff, Martyn
AU - George, Michael W.
PY - 1997/8/13
Y1 - 1997/8/13
N2 - Employing fast time-resolved infrared (TRIR) spectroscopy we have characterized CpRe(CO)2(n-heptane), CpRe(CO)2(Xe), and CpRe(CO)2(Kr) (Cp = η5-C5H5) at or above room temperature in n-heptane, supercritical Xe, and Kr solution. The reactivity of CpRe(CO)2(n-heptane) with CO (k2 = 2.1 (±0.5) x 103 mol-1 dm3 s-1) shows this complex to be the least reactive of the reported organometallic alkane complexes. We report a trend in reactivity of the early transition metal alkane complexes. CpRe(CO)2(Xe) and CpRe(CO)2(Kr) are also shown to have significant stability. CpRe(CO)2(Xe) is less reactive toward CO than all of the reported alkane complexes except CpRe(CO)2(n-heptane).
AB - Employing fast time-resolved infrared (TRIR) spectroscopy we have characterized CpRe(CO)2(n-heptane), CpRe(CO)2(Xe), and CpRe(CO)2(Kr) (Cp = η5-C5H5) at or above room temperature in n-heptane, supercritical Xe, and Kr solution. The reactivity of CpRe(CO)2(n-heptane) with CO (k2 = 2.1 (±0.5) x 103 mol-1 dm3 s-1) shows this complex to be the least reactive of the reported organometallic alkane complexes. We report a trend in reactivity of the early transition metal alkane complexes. CpRe(CO)2(Xe) and CpRe(CO)2(Kr) are also shown to have significant stability. CpRe(CO)2(Xe) is less reactive toward CO than all of the reported alkane complexes except CpRe(CO)2(n-heptane).
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UR - http://www.scopus.com/inward/citedby.url?scp=0030810664&partnerID=8YFLogxK
U2 - 10.1021/ja962939j
DO - 10.1021/ja962939j
M3 - Article
VL - 119
SP - 7521
EP - 7525
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 32
ER -