Silver Iodobismuthates: Syntheses, Structures, Properties, and\nTheoretical Studies of [Bi<sub>2</sub>Ag<sub>2</sub>I<sub>10</sub><sup>2-</sup>]<i><sub>n</sub></i> and [Bi<sub>4</sub>Ag<sub>2</sub>I<sub>16</sub><sup>2-</sup>]<i><sub>n</sub></i>
Wen-Xiang Chai (2472709)Li-Ming Wu (234014)Jun-Qian Li (80140)Ling Chen (25698)
Abstract
Two novel silver iodobismuthates have been obtained: (Et<sub>4</sub>N)<i><sub>2</sub></i><i><sub>n</sub></i>-[Bi<sub>2</sub>Ag<sub>2</sub>I<sub>10</sub>]<i><sub>n</sub></i> (<b>1</b>) with one-dimensional infinite chains built from\nbimetallic tetranuclear units and (Et<sub>4</sub>N)<i><sub>2</sub></i><i><sub>n</sub></i>[Bi<sub>4</sub>Ag<sub>2</sub>I<sub>16</sub>]<i><sub>n</sub></i> (<b>2</b>) with a two-dimensional 4<sup>4</sup> grid assembly of the tetranuclear Bi<sub>4</sub>I<sub>16</sub> subunits\nas nodes and Ag atoms as linkages. Their optical band gaps,\n2.05 and 1.93 eV, fit nicely in a size correlation of the Bi/I subunit,\nwhich is further supported by the density functional theory studies.
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