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Syntheses and Characterization of Two Dicyanamide Compounds Containing Monovalent Cations: Hg2[N(CN)2]2 and Tl[N(CN)2].
Syntheses and Characterization of Two Dicyanamide Compounds Containing Monovalent Cations: Hg2[N(CN)2]2 and Tl[N(CN)2].
- Source :
- Inorganics; Dec2018, Vol. 6 Issue 4, p135, 1p
- Publication Year :
- 2018
-
Abstract
- Crystals of Hg<subscript>2</subscript>[N(CN)<subscript>2</subscript>]<subscript>2</subscript> were grown by a slow diffusion-reaction between aqueous Hg<subscript>2</subscript>(NO<subscript>3</subscript>)<subscript>2</subscript>·2H<subscript>2</subscript>O and Na[N(CN)<subscript>2</subscript>]. Hg<subscript>2</subscript>[N(CN)<subscript>2</subscript>]<subscript>2</subscript> adopts the triclinic space group P 1 ¯ (no. 2) with a = 3.7089(5), b = 6.4098(6), c = 8.150(6) Å, α = 81.575(6)°, β = 80.379(7)°, γ = 80.195(7)°, and Z = 1. Crystals of Tl[N(CN)<subscript>2</subscript>] were obtained from the reaction of TlBr with Ag[N(CN)<subscript>2</subscript>] in water. Single-crystal structure analyses evidence that Tl[N(CN)<subscript>2</subscript>] is isotypic to α-K[N(CN)<subscript>2</subscript>] and adopts the orthorhombic space group Pbcm (no. 57) with a = 8.5770(17), b = 6.4756(13), c = 7.2306(14) Å, and Z = 4. Regarding volume chemistry, the dicyanamide anion occupies ca. 44 cm<superscript>3</superscript>·mol<superscript>−1</superscript>, and so it corresponds to a large pseudohalide. The IR spectra of both compounds exhibit vibrational modes that are characteristic of the dicyanamide anion. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23046740
- Volume :
- 6
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Inorganics
- Publication Type :
- Academic Journal
- Accession number :
- 133825408
- Full Text :
- https://doi.org/10.3390/inorganics6040135