Research output: Contribution to journal › Article › peer-review
Gadolinium Break in a Series of Three-Dimensional trans-1,4-Cyclohexane Dicarboxylates of Rare Earth Elements. / Demakov, P. A.; Sapchenko, S. A.; Samsonenko, D. G. et al.
In: Journal of Structural Chemistry, Vol. 60, No. 5, 01.05.2019, p. 815-822.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Gadolinium Break in a Series of Three-Dimensional trans-1,4-Cyclohexane Dicarboxylates of Rare Earth Elements
AU - Demakov, P. A.
AU - Sapchenko, S. A.
AU - Samsonenko, D. G.
AU - Dybtsev, D. N.
AU - Fedin, V. P.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - By a reaction of lanthanide nitrates with trans-1,4-cyclohexane dicarboxylic acid H2chdc in an aqueous medium new coordination polymers with the composition [Ln2(H2O)4(chdc)3] (Ln = Ce (1), Sm (2), Eu (3), Gd (4)) are obtained. Crystallization conditions are optimized with the use of a hexamine-based pH buffer. Compound 1 is additionally characterized by powder X-ray diffraction, elemental and thermogravimetric analyses, and IR spectroscopy. The structure of the obtained compounds is determined by single crystal X-ray diffraction. In a series of isostructural three-dimensional frameworks [Ln2(H2O)4(chdc)3] (Ln = La—Eu, except Pm) a regular change in the structural features is analyzed. The [Gd2(H2O)4(chdc)3] compound has a similar composition but the topology of the three-dimensional network differs from that of the previous ones due to a decrease in the coordination number of metal centers. Heavier lanthanides, starting from Tb3+, and also yttrium(III) do not form compounds with the mentioned composition under similar reaction conditions.
AB - By a reaction of lanthanide nitrates with trans-1,4-cyclohexane dicarboxylic acid H2chdc in an aqueous medium new coordination polymers with the composition [Ln2(H2O)4(chdc)3] (Ln = Ce (1), Sm (2), Eu (3), Gd (4)) are obtained. Crystallization conditions are optimized with the use of a hexamine-based pH buffer. Compound 1 is additionally characterized by powder X-ray diffraction, elemental and thermogravimetric analyses, and IR spectroscopy. The structure of the obtained compounds is determined by single crystal X-ray diffraction. In a series of isostructural three-dimensional frameworks [Ln2(H2O)4(chdc)3] (Ln = La—Eu, except Pm) a regular change in the structural features is analyzed. The [Gd2(H2O)4(chdc)3] compound has a similar composition but the topology of the three-dimensional network differs from that of the previous ones due to a decrease in the coordination number of metal centers. Heavier lanthanides, starting from Tb3+, and also yttrium(III) do not form compounds with the mentioned composition under similar reaction conditions.
KW - coordination polymers
KW - lanthanide compression
KW - lanthanides
KW - metal-organic frameworks
KW - single crystal X-ray diffraction analysis
UR - http://www.scopus.com/inward/record.url?scp=85067351270&partnerID=8YFLogxK
U2 - 10.1134/S0022476619050159
DO - 10.1134/S0022476619050159
M3 - Article
AN - SCOPUS:85067351270
VL - 60
SP - 815
EP - 822
JO - Journal of Structural Chemistry
JF - Journal of Structural Chemistry
SN - 0022-4766
IS - 5
ER -
ID: 20584023