Hydrogen and Halogen Bonds in Triiodoaminobenzoates of Amine Bases

IF 1.1 4区 化学 Q4 CHEMISTRY, PHYSICAL
D. A. Zherebtsov, V. V. Sharutin, S. A. Nayfert, R. L. Regel, K. Rajakumar, S. A. Adonin, M. A. Polozov, D. V. Spiridonova, A. A. Osipov, A. I. Lutsenko
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引用次数: 0

Abstract

The crystal structures of three organic salts of triiodaminobenzoic acid (13) and triiodaminobenzoic acid monohydrate (4) are described, the structural features are established by the X-ray diffraction method. Compound 1: C20H19I6N3O6, FW 1158.78; monoclinic crystal system, space group Сс; unit cell parameters: a = 32.0782(10) Å, b = 9.5284(3) Å, c = 9.3745(3) Å; α = 90°, β = 90.0(1)°, γ = 90°; V = 2865.35(16) Å3, Z = 4, ρX = 2.684 g/cm3. Compound 2: C16H15I6N3O4, FW 1074.71; monoclinic system, space group P21/c; unit cell parameters: a = 8.990(5) Å, b = 28.541(11) Å, c = 9.945(5) Å; α = γ = 90°, β = 91.23(2)°; V = 2551(2) Å3, Z = 4, ρX = 2.798 g/cm3. Compound 3: C17H17I3N2O4, FW 694.03; monoclinic system, space group I2/a; cell parameters: a = 36.02(2) Å, b = 7.254(5) Å, c = 16.468(9) Å; α = γ = 90°, β = 105.29(2)°; V = 4150(4) Å3, Z = 8, ρX = 2.222 g/cm3. Compound 4: C7H6I3NO3, FW 532.83; orthorhombic system, space group Iba2; unit cell parameters: a = 30.2146(4) Å, b = 13.9830(2) Å, c = 5.80740(10) Å; α = β = γ = 90°; V = 2453.57(6) Å3, Z = 8, ρX = 2.885 g/cm3. The 7-methylquinoline salt is devoid of halogen bonds because of the peculiarities of the stacking of flat molecules. For two compounds (3 and 4), the features of their thermolysis are determined by thermal analysis (in an argon atmosphere): at the first stage (52 and 73°C, respectively), the loss of crystallization water occurs; at 700°C thermolysis of both compounds gives glassy carbon as the decomposition product.

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来源期刊
Doklady Physical Chemistry
Doklady Physical Chemistry 化学-物理化学
CiteScore
1.50
自引率
0.00%
发文量
9
审稿时长
6-12 weeks
期刊介绍: Doklady Physical Chemistry is a monthly journal containing English translations of current Russian research in physical chemistry from the Physical Chemistry sections of the Doklady Akademii Nauk (Proceedings of the Russian Academy of Sciences). The journal publishes the most significant new research in physical chemistry being done in Russia, thus ensuring its scientific priority. Doklady Physical Chemistry presents short preliminary accounts of the application of the state-of-the-art physical chemistry ideas and methods to the study of organic and inorganic compounds and macromolecules; polymeric, inorganic and composite materials as well as corresponding processes. The journal is intended for scientists in all fields of chemistry and in interdisciplinary sciences.
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