Rhenium (V) chloride

Crystal structure
	__ Re 5+ __ Cl -
Crystal system	monoclinic
Space group	P 2 1 / c
Lattice parameters	a = 924 pm, b = 1154 pm, c = 1203 pm, β = 109.1 °
General
Surname	Rhenium (V) chloride
other names	Rhenium pentachloride
Ratio formula	ReCl 5
Brief description	dark green solid
External identifiers / databases
EC number	237-042-6
ECHA InfoCard	100.033.660
PubChem	83602
Wikidata	Q2316104
properties
Molar mass	363.47 g mol −1
Physical state	firmly
density	3.9 g cm −3
Melting point	261 ° C
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 315-319-335
	P: 261-305 + 351 + 338
Thermodynamic properties
ΔH f 0	−373 kJ mol −1
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Rhenium (V) chloride is an inorganic chemical compound of rhenium from the group of chlorides .

Extraction and presentation

Rhenium (V) chloride can be obtained by reacting rhenium with chlorine .

{\ displaystyle {\ ce {2Re + 5Cl2 -> 2ReCl5}}}

It can also be made from rhenium (VII) oxide and carbon tetrachloride .

properties

Rhenium (V) chloride is in the form of paramagnetic , black-brown, greenish shimmering crystals, which are unstable in humid air. The steam is also dark brown. It has a monoclinic crystal structure with the space group P 2 ₁ / c (space group no. 14) and the lattice parameters a = 924 pm, b = 1154 pm, c = 1203 pm and β = 109.1 °. The crystal structure consists of Re ₂ Cl ₁₀ units with double-hexagonal packing. It is soluble in cyclohexane and reacts with oxygen at elevated temperatures to form rhenium oxide chlorides. It reacts with water to form HReO ₄ and black insoluble rhenium (IV) oxide or green dissolved ReCl ₆²⁻ . Can be distilled without decomposition in a chlorine atmosphere or in a vacuum, decomposes above the melting point in nitrogen or argon to form rhenium (III) chloride and chlorine. Template: room group / 14

use

Rhenium (V) chloride is used as a starting material for rhenium porphyrins and rhenium alkyne complexes.

Individual evidence

↑ ^a ^b ^c ^d ^e data sheet Rhenium (V) chloride from Sigma-Aldrich , accessed on May 25, 2017 ( PDF ).
↑ ^a ^b Roger Blachnik (Ed.): Pocket book for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 694 ( limited preview in Google Book search).
^ AF Holleman , N. Wiberg : Inorganische Chemie . 103rd edition. Volume 2: Subgroup elements, lanthanoids, actinides, transactinides. Walter de Gruyter, Berlin / Boston 2016, ISBN 978-3-11-049590-4 , p. 1921 (Reading sample: Part C - Subgroup elements. Google book search ).
↑ ^a ^b Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1608.

[Sigma-1] ↑ ^a ^b ^c ^d ^e data sheet Rhenium (V) chloride from Sigma-Aldrich , accessed on May 25, 2017 ( PDF ).

[Lax-2] Roger Blachnik (Ed.): Pocket book for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 694 ( limited preview in Google Book search).

[3] AF Holleman , N. Wiberg : Inorganische Chemie . 103rd edition. Volume 2: Subgroup elements, lanthanoids, actinides, transactinides. Walter de Gruyter, Berlin / Boston 2016, ISBN 978-3-11-049590-4 , p. 1921 (Reading sample: Part C - Subgroup elements. Google book search ).

[brauer-4] Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1608.