P. J. Loll, D. Picot, and R. M. Garavito, Nat. Struct. Biol, vol.2, p.637, 1995.

G. P. Hochgesang, S. W. Rowlinson, and L. J. Marnett, J. Am. Chem. Soc, vol.122, p.6514, 2000.

R. Glaser, J. Org. Chem, p.771, 2001.

J. R. Sorenson, Handbook of Metal-Ligand Interactions in Biological Fluids, vol.2, 1995.

P. Lemoine, B. Viossat, G. Morgant, F. T. Greenaway, A. Tomas et al., J. Inorg. Biochem, vol.89, pp.1-2, 2002.

C. Boehme, J. Uddin, G. Frenking, and . Coord, Chem. Rev, 2000.

T. S. Koritsanszky and P. Coppens, Chem. Rev, vol.101, p.1583, 2001.

P. Weis, P. R. Kemper, and M. T. Bowers, J. Phys. Chem, vol.101, p.2809, 1997.

C. Lee, C. Wang, K. Chen, G. Lee, and Y. Wang, J. Phys. Chem. A, p.156, 1999.

G. D. Smith, R. Bell, O. Borodin, and R. L. Jaffe, J. Phys. Chem. A, p.6506, 2001.

K. Hasegawa, T. Ono, and T. Noguchi, J. Phys. Chem. A, p.3377, 2002.

U. Hartmann and H. Vahrenkamp, Bulletin of the Polish Academy of Sciences, Chemistry, vol.42, p.161, 1994.

N. K. Hansen, P. Coppens, and . Crystallogr, , vol.34, p.909, 1978.

, ASTRO (5.007), SAINT (5.007) and SADABS (5.007). Data Collection and Processing Software for the SMART System (5.054). Siemens (BRUKER-AXS)

, Analytical X-ray Instruments Inc, 1998.

R. H. Blessing, J. Appl. Crystallogr, vol.30, p.421, 1997.

E. Clementi and C. Roetti, Atomic data and Nuclear data tables, vol.14, p.177, 1974.

E. Clementi and D. L. Raimondi, J. Chem. Phys, p.2686, 1963.

E. D. Stevens, P. Coppens, and . Crystallogr, , vol.35, p.536, 1979.

A. Holladay, P. Leung, and P. Coppens, Acta Crystallogr, p.377, 1983.

L. J. Farrugia, J. Appl. Crystallogr, vol.32, p.837, 1999.

W. F. Kuhs, Acta Crystallogr, p.148, 1983.

P. Coppens, T. N. Guru, P. Leung, E. D. Stevens, P. Becker et al., Acta Crystallogr, vol.35, p.63, 1979.

N. E. Ghermani, N. Bouhmaida, C. Lecomte, . Electros, . Statdens et al., Computer programs to calculate electrostatic properties from high resolution X-ray diffraction, 1992.

N. Bouhmaida, M. Dutheil, N. E. Ghermani, and P. Becker, J. Chem. Phys, vol.116, p.6196, 2002.

M. N. Burnett, C. K. Johnson, and . Ortep-iii, , 1996.

P. Meenan, ACS Symp. Ser, vol.667, issue.2, 1997.

R. Glaser, J. Org. Chem, p.771, 2001.

L. Manojlovic-muir and . Crystallogr, , vol.29, p.2033, 1973.

R. Koradi, M. Billeter, and K. Wüthrich, MOLMOL: a program for display and analysis of macromolecular structures, J. Mol. Graphics, vol.14, p.51, 1996.

R. F. Bader, M. T. Caroll, J. R. Cheeseman, and C. Chang, J. Am. Chem. Soc, vol.109, p.7968, 1987.

J. S. Murray and P. Politzer, J. Chem. Res, p.110, 1992.

T. Brinck, J. S. Murray, and P. Politzer, Mol. Phys, p.609, 1992.

J. S. Murray, T. Brinck, and P. Politzer, Chem. Phys, p.289, 0204.

J. S. Murray, P. J. Politzer, . Mol, and . Struc, , p.107, 1998.

P. Politzer and J. S. Murray, Fluid Phase Equilibria, vol.185, p.129, 2001.