Cs2PdSe8: A Unique Open Framework Structure with Double Helical Assemblies of [Pd(Se4)2]2-**

Jing Li; Zhen Chen; Ru Ji Wang; Jack Y. Lu

doi:10.1006/jssc.1998.7950

Cs₂PdSe₈: A Unique Open Framework Structure with Double Helical Assemblies of [Pd(Se₄)₂]^2-**

Jing Li, Zhen Chen, Ru Ji Wang, Jack Y. Lu

Rutgers University

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Cs₂PdSe₈(1), a novel palladium polyselenide with a three-dimensional open framework structure, has been synthesized via a solvothermal reaction using ethylenediamine as solvent. Its crystal structure has been determined by single crystal X-ray diffraction. The structure belongs to the tetragonal space groupI4₁/acd(No. 142),a=14.935(2),c=12.907(3) Å,V=2897.0(8) Å³,Z=8,R₁=0.044, andwR₂=0.063, for 640 unique reflections. The unique three-dimensional network is composed of two³ _∞[Pd(Se₄)₂] ^2-frameworks that are topologically identical and mutually insertional. Each framework is built upon by connecting the neighboring square-planar [Pd(Se₄)₂]^2-units to generate an infinite assembly resembling alternating right- and left-handed helices running along thec-axis. Thermal analysis (TGA) showed that compound 1 is stable up to 320 °C. Optical studies performed on the powder sample of 1 suggested that the compound is a semiconductor and a band gap of 1.5 eV was estimated from the diffuse reflectance data.

Original language	English
Pages (from-to)	149-153
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	140
Issue number	1
DOIs	https://doi.org/10.1006/jssc.1998.7950
Publication status	Published - Oct 1998

ASJC Scopus subject areas

Inorganic Chemistry
Physical and Theoretical Chemistry
Materials Chemistry

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title = "Cs2PdSe8: A Unique Open Framework Structure with Double Helical Assemblies of [Pd(Se4)2]2-**",

abstract = "Cs2PdSe8(1), a novel palladium polyselenide with a three-dimensional open framework structure, has been synthesized via a solvothermal reaction using ethylenediamine as solvent. Its crystal structure has been determined by single crystal X-ray diffraction. The structure belongs to the tetragonal space groupI41/acd(No. 142),a=14.935(2),c=12.907(3) {\AA},V=2897.0(8) {\AA}3,Z=8,R1=0.044, andwR2=0.063, for 640 unique reflections. The unique three-dimensional network is composed of two3 ∞[Pd(Se4)2] 2-frameworks that are topologically identical and mutually insertional. Each framework is built upon by connecting the neighboring square-planar [Pd(Se4)2]2-units to generate an infinite assembly resembling alternating right- and left-handed helices running along thec-axis. Thermal analysis (TGA) showed that compound 1 is stable up to 320 °C. Optical studies performed on the powder sample of 1 suggested that the compound is a semiconductor and a band gap of 1.5 eV was estimated from the diffuse reflectance data.",

author = "Jing Li and Zhen Chen and Wang, {Ru Ji} and Lu, {Jack Y.}",

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N2 - Cs2PdSe8(1), a novel palladium polyselenide with a three-dimensional open framework structure, has been synthesized via a solvothermal reaction using ethylenediamine as solvent. Its crystal structure has been determined by single crystal X-ray diffraction. The structure belongs to the tetragonal space groupI41/acd(No. 142),a=14.935(2),c=12.907(3) Å,V=2897.0(8) Å3,Z=8,R1=0.044, andwR2=0.063, for 640 unique reflections. The unique three-dimensional network is composed of two3 ∞[Pd(Se4)2] 2-frameworks that are topologically identical and mutually insertional. Each framework is built upon by connecting the neighboring square-planar [Pd(Se4)2]2-units to generate an infinite assembly resembling alternating right- and left-handed helices running along thec-axis. Thermal analysis (TGA) showed that compound 1 is stable up to 320 °C. Optical studies performed on the powder sample of 1 suggested that the compound is a semiconductor and a band gap of 1.5 eV was estimated from the diffuse reflectance data.

AB - Cs2PdSe8(1), a novel palladium polyselenide with a three-dimensional open framework structure, has been synthesized via a solvothermal reaction using ethylenediamine as solvent. Its crystal structure has been determined by single crystal X-ray diffraction. The structure belongs to the tetragonal space groupI41/acd(No. 142),a=14.935(2),c=12.907(3) Å,V=2897.0(8) Å3,Z=8,R1=0.044, andwR2=0.063, for 640 unique reflections. The unique three-dimensional network is composed of two3 ∞[Pd(Se4)2] 2-frameworks that are topologically identical and mutually insertional. Each framework is built upon by connecting the neighboring square-planar [Pd(Se4)2]2-units to generate an infinite assembly resembling alternating right- and left-handed helices running along thec-axis. Thermal analysis (TGA) showed that compound 1 is stable up to 320 °C. Optical studies performed on the powder sample of 1 suggested that the compound is a semiconductor and a band gap of 1.5 eV was estimated from the diffuse reflectance data.

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