Hydrogen bond studies. CXX. An X-ray determination of the crystal structure of LiNO 3.3H 2O

Thomas, J. O. (författare)

Olovsson, I. (författare)

(creator_code:org_t)

1977
1977
Engelska.
Ingår i: Acta Crystallogr. B, Struct. Crystallogr. Cryst. Chem. (Denmark). - 0567-7408. ; B33, s. 2857-2861

Abstract Ämnesord

Stäng

For pt.CXIX see Z. Naturforsch. a, vol.32, p.134 (1977). The crystal structure of lithium nitrate trihydrate, LiNO 3.3H 2O, has been determined by X-ray diffraction at 295K. The crystal is orthorhombic, space group Cmcm, a=6.8018 (4), b=12.7132 (9), c=5.9990 (4) Aring, V=518.75 Aring 3, Z=4. The nitrate ions, Li + ions and one of the two crystallographically non-equivalent water molecules lie in a mirror plane and are bonded to atoms in adjacent planes through the second water molecule. The Li + ion is octahedrally surrounded by six O atoms, four belonging to water molecules and two to nitrate ions. The two non-equivalent water molecules are present in the structure in distinctly different bonding situations. One is bonded to two Li + ions and is the donor of two hydrogen bonds. The other is involved in six hydrogen bonds: the O atom accepts two hydrogen bonds, and both protons are involved in bifurcated hydrogen bonds.

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