141045-26-3

Basic information

• Product Name: 1,3-Bis(1-methylbenzimidazol-2-yl)benzene
• Synonyms: 1,3-Bis(1-methylbenzimidazol-2-yl)benzene;1,3-Bis(1-methyl-1H-benzo[d]imidazol-2-yl)benzene
• CAS NO: 141045-26-3
• Molecular Formula: C22H18N4
• Molecular Weight: 338.40512
• Mol File: 141045-26-3.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,3-Bis(1-methylbenzimidazol-2-yl)benzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-Bis(1-methylbenzimidazol-2-yl)benzene(141045-26-3)
• EPA Substance Registry System: 1,3-Bis(1-methylbenzimidazol-2-yl)benzene(141045-26-3)

Safety Data

• Hazardous Substances Data: 141045-26-3(Hazardous Substances Data)

Usage

General Description

1,3-Bis(1-methylbenzimidazol-2-yl)benzene, also known as MBB, is a chemical compound commonly used in the field of organic chemistry. It consists of a central benzene ring with two 1-methylbenzimidazol-2-yl groups attached at the 1 and 3 positions. MBB is known for its potential applications in various fields, including materials science, medicinal chemistry, and coordination chemistry. It demonstrates a high level of thermal stability and has been studied for its potential as a luminescent material. Additionally, MBB has been investigated for its potential use in the development of organic light-emitting diodes (OLEDs) and other optoelectronic devices. Overall, 1,3-Bis(1-methylbenzimidazol-2-yl)benzene is an important chemical compound with a wide range of potential uses and applications in various scientific and industrial fields.

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Relevant articles and documents

Cyclometalated ruthenium(ii) complexes with bis(benzimidazolyl)benzene for dye-sensitized solar cells

A series of cyclometalated ruthenium complexes with bis(benzimidazolyl)benzene ligands were prepared and their applications in dye-sensitized solar cells are presented. The Ru(iii/ii) redox process of these complexes occurs at +0.71 V vs. Ag/AgCl. All complexes show broad absorptions extending into the near-infrared (NIR) region. The length of alkyl chains on the benzimidazole rings were found critical to the device performance. Sensitizer 4b with octyl substituents exhibits the best cell performance under the standard air mass 1.5 sunlight (η = 3.7%, Jsc = 9.85 mA cm-2, Voc = 555 mV, FF = 0.67). The device exhibits appreciable action in the NIR region between 700 and 850 nm.

Tuning of redox potentials by introducing a cyclometalated bond to bis-tridentate ruthenium(II) complexes bearing bis(N -methylbenzimidazolyl) benzene or -pyridine ligands

A series of asymmetrical bis-tridentate cyclometalated complexes including [Ru(Mebib)(Mebip)]+, [Ru(Mebip)(dpb)]+, [Ru(Mebip)(Medpb)]+, and [Ru(Mebib)(tpy)]+ and two bis-tridentate noncyclometalated complexes [Ru(Mebip)2]2+ and [Ru(Mebip)(tpy)]2+ were prepared and characterized, where Mebib is bis(N-methylbenzimidazolyl)benzene, Mebip is bis(N-methylbenzimidazolyl) pyridine, dpb is 1,3-di-2-pyridylbenzene, Medpb is 4,6-dimethyl-1,3-di-2- pyridylbenzene, and tpy is 2,2′:6′,2″-terpyridine. The solid-state structure of [Ru(Mebip)(Medpb)]+ is studied by X-ray crystallographic analysis. The electrochemical and spectroscopic properties of these ruthenium complexes were studied and compared with those of known complexes [Ru(tpy)(dpb)]+ and [Ru(tpy)2]2+. The change of the supporting ligands and coordination environment allows progressive modulation of the metal-associated redox potentials (Ru II/III) from +0.26 to +1.32 V vs Ag/AgCl. The introduction of a ruthenium cyclometalated bond in these complexes results in a significant negative potential shift. The RuII/III potentials of these complexes were analyzed on the basis of Lever's electrochemical parameters (E L). Density functional theory (DFT) and time-dependent DFT calculations were carried out to elucidate the electronic structures and spectroscopic spectra of complexes with Mebib or Mebip ligands.

Synthesis and spectral properties of 1,3-bis(2-benzimidazyl)benzene and its N-methylated derivative - Reactions with some acids and cobalt(II) salts

Syntheses of 1,3-bis(2-benzimidazyl)benzene (bBzlH2Bz) and its N-methylated derivative (N-MebBzlBz) as well as their acid adducts and a few complexes of cobalt(II), CoX2L (X = halogen; L = N-heterocycle) and (ClO4)2, have been described.The heterocycles have been characterised by IR, electronic and NMR spectral data.The electronic and magnetic susceptibility data suggest tetrahedral geometry for CoX2L and (ClO4)2 (L = bBzlH2Bz or N-MebBzlBz), trigonal-bipyramidal for CoX2(N-MebBzlPy) X2 (X = I or ClO4) complexes.