STUDIES ON LANTHANOID COMPLEXES OF OPEN-CHAIN MULTIDENTATE LIGANDS .8. PREPARATION AND STRUCTURAL CHARACTERIZATION OF THE UNDECACOORDINATE COMPLEX OF NEODYMIUM NITRATE WITH N,N'-BIS(4-METHOXYPHENYL) TETRAGLYCOLLIC DIAMIDE
Zj. Liang et al., STUDIES ON LANTHANOID COMPLEXES OF OPEN-CHAIN MULTIDENTATE LIGANDS .8. PREPARATION AND STRUCTURAL CHARACTERIZATION OF THE UNDECACOORDINATE COMPLEX OF NEODYMIUM NITRATE WITH N,N'-BIS(4-METHOXYPHENYL) TETRAGLYCOLLIC DIAMIDE, Journal of coordination chemistry, 30(2), 1993, pp. 103-109
The title compound [Nd(L)(NO3)3].2CH3CN was formed by reaction of neod
ymium nitrate with N,N'-bis(4-methoxyphenyl)tetraglycollic diamide (L)
. The complex crystallizes in the monoclinic system space group Cc wit
h Z = 4, a = 21.305(6), b = 11.470(4), c = 14.436(3) angstrom, beta =
97.41(2)-degrees, V = 3498(2) angstrom3. The pentadentate organic liga
nd wraps around the neodymium ion which is also bonded to three bident
ate nitrate groups, achieving uncommon undecacoordination with the fol
lowing mean bond lengths: Nd-O(etheric), 2.703; Nd-O(carbonyl), 2.518;
Nd-O(nitrate), 2.546 angstrom.