Bis-Hexaaquasodium Decaaqua-Monohydrogen-Hexasodium-Gadolinium-bis-(Nitrilo-Tris-Methylenephosphonate) Tetrahydrate: Synthesis, Structure, Chemical Bonding

• Published in: Journal of structural chemistry Vol. 60; no. 9; pp. 1385 - 1395
• Main Authors: Somov, N. V., Chausov, F. F., Lomova, N. V., Vorobyov, V. L., Zakirova, R. M., Petrov, V. G., Shumilova, M. A., Zhirov, D. K.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-09-2019; Springer Nature B.V
• Subjects: Apexes; Atomic; Atomic properties; Atomic/Molecular Structure and Spectra; Chemical bonds; Chemical synthesis; Chemistry; Chemistry and Materials Science; Gadolinium; Inorganic Chemistry; Molecular; Nitrogen atoms; Optical and Plasma Physics; Organic chemistry; Oxygen atoms; Physical Chemistry; Sodium; Solid State Physics; nitrilo-tris-methylenephosphonate; inner valence molecular orbitals; Raman and IR spectra; coordination bonding; structure; X-ray photoelectron spectroscopy; gadolinium
• ISSN: 0022-4766; 1573-8779
• DOI: 10.1134/S0022476619090038

Bis-hexaaquasodium decaaqua-monohydrogen-hexasodium-gadolinium-bis-(nitrilo-tris-methylenephosphonate) tetrahydrate [Na(H
2
O)
6
]
2
[GdNa
6
H(H
2
O)
10
{N(CH
2
PO
3
}
2
]·4H
2
O (space group
P
2
1
/
c, Z
= 2,
a
= 11.8168(7) Å,
b
= 10.5403(9) Å,
c
= 19.8094(10) Å, β = 94.232(5)) has been synthesized and isolated. The Gd
3+
ion is coordinated in the configuration of an elongated rhombohedron in the environment of two acid residues {N(CH
2
PO
3
)
3
}. Two rhombohedron’s vertices distant from its center are occupied by nitrogen atoms, and six nearest vertices are occupied by oxygen atoms. Six sodium ions form inorganic bridges P-O-Na-O-P. The structure of the obtained complex is confirmed spectroscopically. XPS data indicate the formation of coordination bonds Gd-N and multiple bonds Gd-O.