@article {3870, title = {Organometallic halides: Preparation and physical and chemical properties of tris[(eta-pentamethylcyclopentadienyl)dichlorovanadium], [(eta-C5Me5)V(mu-Cl)(2)](3)}, journal = {Organometallics}, volume = {16}, number = {9}, year = {1997}, note = {ISI Document Delivery No.: WX030Times Cited: 14Cited Reference Count: 60}, month = {Apr}, pages = {1865-1869}, type = {Article}, abstract = {The cluster [(eta-C5Me5)V(mu-Cl)(2)](3) was synthesized from VCl3(thf)(3) and (Bu3SnC5Me5)-Sn-n. It was oxidized by O-2 to give (eta-C5Me5)VCl2(O), and by NaN3 to give [(eta-C5Me5)VCl(mu-N)](2). X-ray diffraction showed that [(eta-C5Me5)V(mu-Cl)(2)](3) had an equilateral triangle of vanadium atoms (mean V-V 3.367 (2) Angstrom), with each edge of the triangle symmetrically bridged by two chlorine atoms. The cluster contains six core electrons. The cluster [(eta-C5Me5)V(mu-Cl-2](3) had a magnetic moment of 2.92 mu(B) at room temperature and showed antiferromagnetic behavior.}, keywords = {CHROMIUM(III), CRYSTAL-STRUCTURE, DERIVATIVES, HALF-SANDWICH COMPLEXES, MAIN-GROUP ELEMENTS, multiple bonds, OXIDES, OXO, TRANSITION-METALS, {ALKYLS}, isbn = {0276-7333}, url = {://A1997WX03000011}, author = {Abernethy, C. D. and Bottomley, F. and Decken, A. and Thompson, R. C.} } @article {2968, title = {ORGANOMETALLIC OXIDES - PREPARATION AND PROPERTIES OF THE CLUSTERS (ETA-C(5)ME(5))(4)MO5O11 AND ([(ETA-C(5)ME(5))MO](3)(MU-OH)(N)(MU-O)(6-N))CL-2}, journal = {Journal of the American Chemical Society}, volume = {116}, number = {18}, year = {1994}, note = {ISI Document Delivery No.: PF913Times Cited: 22Cited Reference Count: 39}, month = {Sep}, pages = {7989-7995}, type = {Article}, abstract = {{Reaction of [(eta-C(5)Me(5))Mo(O)(mu-O)](2) with [(eta-C(5)Me(5))Mo(CO)(2)]2 plus O-2 give (eta-C(5)Me(5))(4)Mo5O11. This cluster contains (eta-C(5)Me(5))Mo(O)(2) attached to a [(eta-C(5)Me(5))Mo(mu-O)](3)(mu(3)-O)(3)Mo(O)(2) unit-by a bridging oxygen atom. The [Mo(mu-O)](3)(mu(3)-O)(3)Mo structure is favored over the alternative adamantane-like [M(4)(mu-O)(6)] structure because of the pi-bonding of the terminal oxygen atoms attached to the apical Mb atom. The [(eta-C(5)Me(5))Mo(mu-O)](3)(mu(3)-O)(3)Mo(O)(2) unit contains four cluster electrons which are associated with the three basal molybdenum atoms. The magnetic moment of (eta-C(5)Me(5))(4)Mo4O11 was 3.16 mu(B) at 291 K, indicating that the cluster core has two unpaired electrons. Crystal data: C40H60Mo5O11, triclinic, P (1) over bar}, keywords = {<(ETA-5-C5ME5)3RE3(MU-O)6>2+, <(ETA-C5H5)CR(MU-3-O)>4, COMPLEXES, CRYSTAL-STRUCTURE, ELECTRONIC-STRUCTURES, MAIN GROUP ELEMENTS, multiple bonds, OXIDATION, TRANSITION-METALS}, isbn = {0002-7863}, url = {://A1994PF91300005}, author = {Bottomley, F. and Chen, J. H. and Preston, K. F. and Thompson, R. C.} }