Trimeric Units [Ag3X8]5– with Face‐sharing Polyhedra in the Series Tl2AgX3 (X = Cl, Br, I): Synthesis, Crystal Structure, and Vibrational Spectra

Trimeric Units [Ag3X8]5– with Face‐sharing Polyhedra in the Series Tl2AgX3 (X = Cl, Br, I):... The ternary compounds Tl2AgX3 (X = Cl, Br, I) were obtained as colorless single crystals by reaction of the binary halides AgX and TlX (X = Cl, Br, I) together with concentrated HX solutions under hydrothermal conditions. Silica glass ampoules were filled to 50 % with these solutions and heated for several days up to 250 °C. The reaction was carried out in steel autoclaves to prevent bursting. All the compounds are isostructural and crystallize trigonally with the already known Tl2AgI3 type (R3, Z = 9), but Tl2AgCl3 [a = 9.5075(6), c = 18.585(2) Å, R1 = 0.035, wR2 = 0.062] and Tl2AgBr3 [a = 9.8758(6), c = 19.1532(14) Å, R1 = 0.046, wR2 = 0.085] were characterized for the first time. The crystal structure consists of unique [Ag3X8]5– units, which are formed by a central [AgX6]5– octahedron with two face‐sharing [AgX4]4– tetrahedra in trans position. The Ag+···Ag+ distance is nearly independent from the anion size and amounts to 3.13–3.16 Å. The distance results just from repulsive interactions. Vibrational spectra were recorded for the complete series. DTA measurements confirm the peritectic formation of both compounds with X = Cl and Br. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Zaac-Journal of Inorganic and General Chemistry Wiley

Trimeric Units [Ag3X8]5– with Face‐sharing Polyhedra in the Series Tl2AgX3 (X = Cl, Br, I): Synthesis, Crystal Structure, and Vibrational Spectra

Loading next page...
 
/lp/wiley/trimeric-units-ag3x8-5-with-face-sharing-polyhedra-in-the-series-DoZ2AwM0gw
Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
0044-2313
eISSN
1521-3749
D.O.I.
10.1002/zaac.201700358
Publisher site
See Article on Publisher Site

Abstract

The ternary compounds Tl2AgX3 (X = Cl, Br, I) were obtained as colorless single crystals by reaction of the binary halides AgX and TlX (X = Cl, Br, I) together with concentrated HX solutions under hydrothermal conditions. Silica glass ampoules were filled to 50 % with these solutions and heated for several days up to 250 °C. The reaction was carried out in steel autoclaves to prevent bursting. All the compounds are isostructural and crystallize trigonally with the already known Tl2AgI3 type (R3, Z = 9), but Tl2AgCl3 [a = 9.5075(6), c = 18.585(2) Å, R1 = 0.035, wR2 = 0.062] and Tl2AgBr3 [a = 9.8758(6), c = 19.1532(14) Å, R1 = 0.046, wR2 = 0.085] were characterized for the first time. The crystal structure consists of unique [Ag3X8]5– units, which are formed by a central [AgX6]5– octahedron with two face‐sharing [AgX4]4– tetrahedra in trans position. The Ag+···Ag+ distance is nearly independent from the anion size and amounts to 3.13–3.16 Å. The distance results just from repulsive interactions. Vibrational spectra were recorded for the complete series. DTA measurements confirm the peritectic formation of both compounds with X = Cl and Br.

Journal

Zaac-Journal of Inorganic and General ChemistryWiley

Published: Jan 15, 2018

Keywords: ; ; ; ;

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off