Related Experiment Video
Updated: May 26, 2026

Synthesis of Triazole and Tetrazole-Functionalized Zr-Based Metal-Organic Frameworks Through Post-Synthetic Ligand Exchange
Published on: June 23, 2023
Dichloridobis[3-meth-oxy-methyl-4-phenyl-5-(2-pyrid-yl)-4H-1,2,4-triazole-κN,N]chromium(III) chloride
Xiaofei Jin1, Zuoxiang Wang, Shouping Cao
1School of Chemistry and Engineering, Southeast University, Nanjing 211189, People's Republic of China.
Abstract:
In the title complex, [CrCl(2)(C(15)H(14)N(4)O)(2)]Cl, the Cr(III) atom is located on a twofold rotation axis and is coordinated by two N,N'-bidentate triazole derivatives and two chloride ions in a distorted octa-hedral CrN(2)N'(2)Cl(2) geometry. One of the two independent Cl(-) counter-anions sits on a special position (site symmetry [Formula: see text].) and is fully occupied, whereas the other is disordered around a twofold rotation axis over two positions in a 2:3 ratio.
Related Concept Videos
Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Predicting Molecular Geometry
Alkyl Halides
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...
Halogenation of Alkenes
Consider the bromination of cyclopentene. Molecular bromine is polarized in the proximity of the π electrons of cyclopentene. An electrophilic bromine atom adds across the double bond, forming a cyclic bromonium ion intermediate.
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions

![Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F51444.jpg&w=3840&q=50)