Collected Item: “A new polymorph of Ba(AsO3OH): Synthesis, crystal structure and vibrational spectra”
Врста публикације
Рад у часопису
Верзија рада
објављена верзија
Језик рада
енглески
Аутор/и (Милан Марковић, Никола Николић)
Tamara Đorđević, Ljiljana Karanović
Наслов рада (Наслов - поднаслов)
A new polymorph of Ba(AsO3OH): Synthesis, crystal structure and vibrational spectra
Наслов часописа
Journal of Solid State Chemistry
Издавач (Београд : Просвета)
Elsevier BV
Година издавања
2010
Сажетак на енглеском језику
A new monoclinic polymorph of Ba(AsO3OH) was synthesized under hydrothermal conditions. It
represents a previously unknown structure type. Its crystal structure was determined from a racemic
twin using single-crystal X-ray diffraction data collected at 120 and 293 K [space group P21, a=7.2149(14)/7.2370(2), b=7.7028(15)/7.7133(2), c=21.7385(43)/21.8079(5) Å, β=95.95(3)/96.073(1)1,
V=1201.6(4)/1210.51(5) Å3, Z=12]. The crystal structure of P21-Ba(AsO3OH) has a layered character
and is built up of four types of regularly alternating layers parallel to (0 0 1). Every AsO3OH tetrahedron
is chelating to two Ba atoms and bridged by another two Ba atoms. Each OH group acts as hydrogen
bond donor toward the oxygen atoms positioned in the same or adjacent layers. Although the H atoms
could not be located, no ambiguities are present in the hydrogen-bonding scheme. Single-crystal
vibrational spectroscopy (FTIR and Raman) was used to describe the vibrational behavior of the
hydrogen bond system; particularly the spectroscopic manifestation of the very short and short
hydrogen bonds (2.462(7)–2.575(7) Å). In order to complement spectroscopic data on protonated orthoarsenates, infrared spectra of triclinic F1¯ -Sr(AsO3OH) and the orthorhombic variety of Pbca-Ba(AsO3OH) were recorded and discussed. Furthermore, structural features of other alkaline earth
hydrogen arsenates are discussed.
represents a previously unknown structure type. Its crystal structure was determined from a racemic
twin using single-crystal X-ray diffraction data collected at 120 and 293 K [space group P21, a=7.2149(14)/7.2370(2), b=7.7028(15)/7.7133(2), c=21.7385(43)/21.8079(5) Å, β=95.95(3)/96.073(1)1,
V=1201.6(4)/1210.51(5) Å3, Z=12]. The crystal structure of P21-Ba(AsO3OH) has a layered character
and is built up of four types of regularly alternating layers parallel to (0 0 1). Every AsO3OH tetrahedron
is chelating to two Ba atoms and bridged by another two Ba atoms. Each OH group acts as hydrogen
bond donor toward the oxygen atoms positioned in the same or adjacent layers. Although the H atoms
could not be located, no ambiguities are present in the hydrogen-bonding scheme. Single-crystal
vibrational spectroscopy (FTIR and Raman) was used to describe the vibrational behavior of the
hydrogen bond system; particularly the spectroscopic manifestation of the very short and short
hydrogen bonds (2.462(7)–2.575(7) Å). In order to complement spectroscopic data on protonated orthoarsenates, infrared spectra of triclinic F1¯ -Sr(AsO3OH) and the orthorhombic variety of Pbca-Ba(AsO3OH) were recorded and discussed. Furthermore, structural features of other alkaline earth
hydrogen arsenates are discussed.
Волумен/том или годиште часописа
183
Број часописа
12
Почетна страна
2835
Завршна страна
2844
DOI број
10.1016/j.jssc.2010.09.027
ISSN број часописа
0022-4596
Кључне речи на српском (одвојене знаком ", ")
Ba(AsO3OH), хидротермална синтеза, структурна анализа монокристала, Раманска спектроскопија, инфрацрвена спектроскопија, водоничне везе, хидрогенарсенати земноалкалних метала
Кључне речи на енглеском (одвојене знаком ", ")
Ba(AsO3OH), hydrothermal synthesis, single crystal structure analysis, Raman spectroscopy, infrared spectroscopy, hydrogen bonds, alkaline earth hydrogen arsenates
Линк
https://api.elsevier.com/content/article/PII:S0022459610004263?httpAccept=text/xml
Шира категорија рада према правилнику МПНТ
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