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Thallium diphosphates
Zeitschrift für Naturforschung B ( IF 0.8 ) Pub Date : 2020-10-14 , DOI: 10.1515/znb-2020-2108
Matthias Weil 1 , Berthold Stöger 2
Affiliation  

Three thallium(I) diphosphates with compositions Tl4P2O7, Tl2H2P2O7, Tl2H2P2O7(H2O)0.5 and the mixed-valent thallium(I,III) diphosphate Tl2P2O7 (= TlITlIIIP2O7) were obtained from aqueous solutions using an ion-exchange resin (Tl4P2O7), through thermal treatment of TlH2PO4 at 190 °C and subsequent crystallization from aqueous solutions (Tl2H2P2O7, Tl2H2P2O7(H2O)0.5), and from a phosphate flux at 220 °C (Tl2P2O7). The crystal structures of monoclinic Tl4P2O7 (C2/c, Z = 4) and orthorhombic Tl2H2P2O7 (Pbca, Z = 8) are unique, whereas monoclinic Tl2H2P2O7(H2O)0.5 (C2/c, Z = 8) is isotypic with its potassium analogue, and triclinic Tl2P2O7 (P1, Z = 4) crystallizes in the TlInAs2O7 structure type. The crystal structure of Tl2P2O7 is related to that of In2P2O7 (= InIInIIIP2O7; P21/c, Z = 4) by a translationengleiche group-subgroup relationship (t2). IR spectra of Tl4P2O7, Tl2H2P2O7 and Tl2P2O7 are reported and discussed.

中文翻译:

二磷酸hall

三种具有成分Tl 4 P 2 O 7,Tl 2 H 2 P 2 O 7,Tl 2 H 2 P 2 O 7(H 2 O)0.5的二磷酸th(I )和混合价的二磷酸al(I,III)使用离子交换树脂(Tl 4 P 2 O 7)从水溶液中获得Tl 2 P 2 O 7(= Tl I Tl III P 2 O 7),通过在190°C下热处理TlH 2 PO 4并随后从水溶液(Tl 2 H 2 P 2 O 7,Tl 2 H 2 P 2 O 7(H 2 O)0.5)和磷酸盐中结晶220°C(Tl 2 P 2 O 7)时的通量。单斜晶Tl 4 P 2 O 7C 2 / cZ  = 4)和斜方晶Tl 2 H的晶体结构2 P 2 O 7PbcaZ  = 8)是独特的,而单斜晶系的Tl 2 H 2 P 2 O 7(H 2 O)0.5C 2 / cZ  = 8)具有钾类似物和三斜晶型。 Tl 2 P 2 O 7P1个Z  = 4)结晶为TlInAs 2 O 7结构类型。Tl 2 P 2 O 7的晶体结构与In 2 P 2 O 7的晶体结构(= In I In III P 2 O 7P 2 1 / cZ  = 4)之间存在平移-基团-亚组关系(t 2)。Tl 4 P 2 O 7,Tl 2 H的红外光谱报告和讨论了2 P 2 O 7和Tl 2 P 2 O 7
更新日期:2020-10-15
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