5-[1-(Carb-oxy-meth-yl)pyridinium-4-yl]-1,2,3,4-tetra-zol-1-ide
1Department of Chemical & Environmental Engineering, Anyang Institute of Technology, Anyang 455000, People's Republic of China.
Abstract:
In the title compound, C(8)H(7)N(5)O(2), the tetra-zole and pyridine rings are twisted from each other by a dihedral angle of 17.97 (1)°. The zwitterionic mol-ecules are connected by O-H⋯N hydrogen bonds into a chain parallel to [20]. Further C-H⋯O and C-H⋯N hydrogen bonds link the chains, building up a three-dimensional network.
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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.
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Crown ethers are cyclic polyethers that contain multiple oxygen atoms, usually arranged in a regular pattern. The first crown ether was synthesized by Charles Pederson while working at DuPont in 1967. For this work, Pedersen was co-awarded the 1987 Nobel Prize in Chemistry. Crown ethers are named using the formula x-crown-y, where x is the total number of atoms in the ring and y is the number of ether oxygen atoms. The term 'crown' refers to the crown-like shape that these ether molecules take.
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