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Evolution of the Electronic Structure of Hybrid Organic-Inorganic Halide Perovskite Single Crystals upon Alkali Metal

Jinpeng Yang1, Tingyu Jiao2, Wei Li2

  • 1College of Physical Science and Technology, Yangzhou University, Jiangsu225009, China.

The Journal of Physical Chemistry Letters
|July 30, 2026
PubMed

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Alkyl Halides

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Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as fluorine, chlorine, bromine, or iodine. The carbon atom in an alkyl halide is bonded to the halogen atom, which is sp3-hybridized and exhibits a tetrahedral shape.
Unlike alkyl halides, compounds in which a halogen atom is bonded to an sp2 -hybridized carbon atom of a carbon-carbon double bond (C=C) are called vinyl halides. Whereas aryl...
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Imperfections in Crystal Structure: Non-Stoichiometric Defects

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Electrophilic Addition to Alkynes: Halogenation

Introduction
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Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals