Preparation and characterization of solid state lanthanum-titanium citrate complexes

被引：38

作者：

Milanova, MM ^{[1
]}

Arnaudov, MG ^{[1
]}

Getsova, MM ^{[1
]}

Todorovsky, DS ^{[1
]}

机构：

[1] Univ Sofia, Fac Chem, BU-1126 Sofia, Bulgaria

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 264卷 / 1-2期

关键词：

citric acid; ethylene glycol; solid state complexes; lanthanum; titanium;

D O I：

10.1016/S0925-8388(97)00225-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solid state La-Ti-citrate complexes are isolated from ethylene glycol and water solutions. The elemental composition of the compounds is determined, the C-13 and H-1-NMR and IR spectra are analysed, and their thermochemical behaviour is studied. It is found out that the ethylene glycol is present in the complex, prepared at 40 degrees C, mainly as an adduct with the citric acid. The complex obtained at 120 degrees C contains ethylene glycol almost entirely as a monocitrate. It is confirmed that in the course of the complex formation a deprotonation of part of the alcoholic OH-groups of the citrate ligands takes place. (C) 1998 Elsevier Science S.A.

引用

页码：95 / 103

页数：9

共 9 条

[1] ARNAUDOV M, UNPUB
[2] THERMAL-DECOMPOSITION OF (BATI) CITRATES INTO BARIUM-TITANATE
HENNINGS, D
MAYR, W
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1978, 26 (04) : 329 - 338
[3] Polymerized complex route to synthesis of pure Y2Ti2O7 at 750 degrees C using yttrium-titanium mixed-metal citric acid complex
Kakihana, M
Milanova, MM
Arima, M
Okubo, T
Yashima, M
Yoshimura, M
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (06) : 1673 - 1676
[4] KAKIHANA M, 1994, T MRS JAP, V14, P801
[5] COORDINATION STRUCTURES FOR URANYL CARBOXYLATE COMPLEXES IN AQUEOUS-SOLUTION STUDIED BY IR AND C-13 NMR-SPECTRA
KAKIHANA, M
NAGUMO, T
OKAMOTO, M
KAKIHANA, H
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (24) : 6128 - 6136
[6] Milanova MM, 1996, J ALLOY COMPD, V242, P6, DOI 10.1016/0925-8388(96)02323-7
[7] ROTATIONAL ISOMERISM .10. NUCLEAR MAGNETIC RESONANCE STUDY OF 2-FLUORO-ETHANOL AND ETHYLENE GLYCOL
PACHLER, KGR
WESSELS, PL
[J]. JOURNAL OF MOLECULAR STRUCTURE, 1970, 6 (06) : 471 - &
[8] Simons W. W., 1978, SADTLER HDB PROTON N
[9] UCHIYAMA O, 1994, REP RES LAB ENG MAT

← 1 →