spectrum under non-saturating microwave power conditions. The
G. V. Koten, Acta Crystallogr., Sect. C: Cryst. Struct. Commun., 1999,
55, 1636; (j) D. Rehder, Coord. Chem. Rev., 2008, 252, 2209.
3 (a) S. Scheuer, J. Fischer and J. Kress, Organometallics, 1995, 14, 2627;
(b) M. C. W. Chan, J. M. Cole, V. C. Gibson and J. A. K. Howard,
Chem. Commun., 1997, 2345; (c) H. Hagen, C. Bezemer, J. Boersma,
H. Kooijman, M. Lutz, A. L. Spek and G. van Koten, Inorg. Chem.,
2000, 39, 3970; (d) K. Nomura, A. Sagara and Y. Imanishi, Chem.
Lett., 2001, 36; (e) Y. Sato, Y. Nakayama and H. Yasuda, J. Appl.
Polym. Sci., 2005, 97, 1008; (f) J. Yamada, M. Fujiki and K. Nomura,
Organometallics, 2005, 24, 2248; (g) C. Redshaw, M. A. Rowan, L.
Warford, D. M. Homden, A. Arbaoui, M. R. J. Elsegood, S. H. Dale,
T. Yamato, C. P. Casas, S. Matsui and S. Matsuura, Chem.–Eur. J., 2007,
13, 1090; (h) A. Arbaoui, C. Redshaw, D. M. Homden, J. A. Wright
and M. R. J. Elsegood, Dalton Trans., 2009, 8911; (i) S. Zhang and K.
Nomura, J. Am. Chem. Soc., 2010, 132, 4960; (j) C. Redshaw, Dalton
Trans., 2010, 39, 5595.
g value was calibrated using a Mn2+ marker.
Acknowledgements
M.N. acknowledges a JSPS fellowship for young scientists and
expresses special thanks for the Global COE (center of excel-
lence) program ‘Global Education and Research Center for Bio-
Environmental Chemistry’ of Osaka University. We thank Dr
T. Suenobu and Prof. S. Fukuzumi at Osaka University for the
measurement of the EPR spectra. Thanks are due to the use of
the 51V NMR from the Analytical Center, Graduate School of
Engineering, Osaka University and the donation of VO(Oi-Pr)3
and VO(OEt)Cl2 from Nichia corporation.
4 (a) J. de With, A. D. Horton and A. G. Orpen, Organometallics, 1990,
9, 2207; (b) J. de With and A. D. Horton, Angew. Chem., Int. Ed. Engl.,
1993, 32, 903.
5 (a) K. R. Birdwhistell, T. Boucher, M. Ensminger, S. Harris, M. Johnson
and S. Toporek, Organometallics, 1993, 12, 1023; (b) F. Tabellion, A.
Nachbauer, S. Leininger, C. Peters, F. Preuss and M. Regitz, Angew.
Chem., Int. Ed., 1998, 37, 1233; (c) C. Lorber, R. Choukroun and L.
Vendier, Organometallics, 2004, 23, 1845.
6 (a) T. Moriuchi, K. Ishino and T. Hirao, Chem. Lett., 2007, 36, 1486;
(b) T. Moriuchi, T. Beppu, K. Ishino, M. Nishina and T. Hirao,
Eur. J. Inorg. Chem., 2008, 1969; (c) T. Moriuchi, K. Ishino, T. Beppu,
M. Nishina and T. Hirao, Inorg. Chem., 2008, 47, 7638.
References
1 (a) D. E. Wigley, in Progress in Inorganic Chemistry, Vol. 42, Ed.,
K. D. Karlin, Wiley-Interscience, New York, 1994, pp. 239–482;
(b) W. A. Nugent and J. M. Mayer, Metal–Ligand Multiple Bonds,
Wiley-Interscience, New York, 1998; (c) T. R. Cundari, Chem. Rev.,
2000, 100, 807.
2 (a) F. Preuss and W. Towae, Z. Naturforsch., Teil B, 1981, 36, 1130;
(b) E. A. Maatta, Inorg. Chem., 1984, 23, 2560; (c) D. D. Devore, J. D.
Lichtenhan, F. Takusagawa and E. A. Maatta, J. Am. Chem. Soc., 1987,
109, 7408; (d) A. Hills, D. L. Hughes, G. J. Leigh and R. Prieto-Alcond,
J. Chem. Soc., Dalton Trans., 1993, 3609; (e) G. A. Solan, P. G. Cozzi,
C. Floriani, A. Chiesi-Villa and C. Rizzoli, Organometallics, 1994, 13,
2572; (f) J.-K. F. Buijink, A. Meetsma, J. H. Teuben, H. Kooijman and
A. L. Spek, J. Organomet. Chem., 1995, 497, 161; (g) M. G. Fickes,
W. M. Davis and C. C. Cummins, J. Am. Chem. Soc., 1995, 117, 6384;
(h) P. T. Witte, A. Meetsma and B. Hessen, J. Am. Chem. Soc., 1997,
119, 10561; (i) M. Lutz, H. Hagen, A. M. M. Schreurs, A. L. Spek and
7 (a) T. Hirao, T. Fujii, S.-I. Miyata and Y. Ohshiro, J. Org. Chem., 1991,
56, 2264; (b) T. Hirao, T. Fujii and Y. Ohshiro, J. Organomet. Chem.,
1991, 407, C1–C4; (c) T. Fujii, T. Hirao and Y. Ohshiro;, Tetrahedron
Lett., 1992, 33, 5823; (d) T. Hirao, T. Fujii and Y. Ohshiro, Tetrahedron,
1994, 50, 10207; (e) K. Ryter and T. Livinghouse, J. Am. Chem. Soc.,
1998, 120, 2658.
8 S. Durr, B. Bechlars and U. Radius, Inorg. Chim. Acta, 2006, 359, 4215.
¨
9 C. Ainsworth, F. Chen and Y. N. Kuo, J. Organomet. Chem., 1972, 46,
59.
10 H. O. House, L. J. Czuba, M. Gall and H. D. Olmstead, J. Org. Chem.,
1969, 34, 2324.
9940 | Dalton Trans., 2010, 39, 9936–9940
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