TY - JOUR
T1 - Trinuclear Mo-Mo-Bonded Cluster Cation with One Oxygen Atom Cap and One Ethylidyne Cap
AU - Bino, Avi
AU - Cotton, F. Albert
AU - Kolthammer, Brian W.S.
AU - Dori, Zvi
PY - 1981/9
Y1 - 1981/9
N2 - The compound [ 3(µ3-O) (#.3-CCH3) (O2CCH3)6(H2O)3] BF4-9H2O has been prepared and thoroughly characterized by a variety of physical measurements, including a complete X-ray crystallographic structure determination. It crystallizes in space group Pmn21 with Z = 2 and the following unit cell dimensions: a = 11.140 (1) Å, b = 7.939 (1) Å, c = 20.297 (3) Å, V = 1795.1 (7) Å3. The cation resides on the crystallographic mirror plane but has C3. symmetry within experimental error, with the following important mean distances: Mo-Mo, 2.752 (1) Å; -(µ3-0), 1.983 (4) Å; Mo-CCH3, 2.044 (7) Å; Mo-O(acetate), 2.12 (1) Å; Mo-0(H20), 2.164 (4) Å. The compound is diamagnetic and exhibits well-resolved and 13C NMR spectra completely consistent with the proposed structure. 13C tracer study shows that the ethylidyne group arises by reduction of the acetate group. The bonding in the trimolybdenum cluster can be described as three Mo-Mo bonds of order 1.
AB - The compound [ 3(µ3-O) (#.3-CCH3) (O2CCH3)6(H2O)3] BF4-9H2O has been prepared and thoroughly characterized by a variety of physical measurements, including a complete X-ray crystallographic structure determination. It crystallizes in space group Pmn21 with Z = 2 and the following unit cell dimensions: a = 11.140 (1) Å, b = 7.939 (1) Å, c = 20.297 (3) Å, V = 1795.1 (7) Å3. The cation resides on the crystallographic mirror plane but has C3. symmetry within experimental error, with the following important mean distances: Mo-Mo, 2.752 (1) Å; -(µ3-0), 1.983 (4) Å; Mo-CCH3, 2.044 (7) Å; Mo-O(acetate), 2.12 (1) Å; Mo-0(H20), 2.164 (4) Å. The compound is diamagnetic and exhibits well-resolved and 13C NMR spectra completely consistent with the proposed structure. 13C tracer study shows that the ethylidyne group arises by reduction of the acetate group. The bonding in the trimolybdenum cluster can be described as three Mo-Mo bonds of order 1.
UR - http://www.scopus.com/inward/record.url?scp=0041981050&partnerID=8YFLogxK
U2 - 10.1021/ja00409a027
DO - 10.1021/ja00409a027
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AN - SCOPUS:0041981050
SN - 0002-7863
VL - 103
SP - 5779
EP - 5784
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 19
ER -