Category: 22426-14-8

Sigma donor and pi acceptor characteristics of certain NN-bidentate ligands: a DFT Study was written by Maqsood, Syed Raashid;Islam, Nasarul;Bashir, Shabnum;Khan, Badruddin;Pandith, Altaf Hussain. And the article was included in Journal of Coordination Chemistry in 2013.Application In Synthesis of 2-Bromo-1,10-phenanthroline This article mentions the following:

Metal ion binding affinity of three NN bidentate ligands in terms of simple parameters of the conceptual d. functional theory is reported. Role of ligand framework for chelate stabilization for ethylenediamine (en) bipyridyl (bpy), and 1,10 phenanthroline (phen) is quantified on the basis of NCCN dihedral angle (锠? and N-N spatial distance. We find that the sigma (锜? donor character of three NN-bidentate ligands follow the order phen < bpy < en, which is quit opposite to their exptl. observed stability constant data. However, the overall binding affinity order is correlative with the chelate stabilization and pi back acceptance characteristics; thereby explaining the exptl. stability order. We also studied the effect of some electron donating and electron withdrawing substituents on the sigma bonding affinity and pi (锜? bonding behavior of the various substituted phen derivatives The overall binding affinity of these derivatives was correlated on the basis of electrophilicity index (锠?. 锜?Donor character for the ligands was observed to vary in the order NH₂ > Ph > OH > CH₃ > H > Br > Cl > COOH > NO₂ for the substitution at 2 and 9 positions. The trend was found in synergism with their Ortho, Para directing efficiencies. In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8Application In Synthesis of 2-Bromo-1,10-phenanthroline).

2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Application In Synthesis of 2-Bromo-1,10-phenanthroline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Comparisons on isomeric 1,10-phenanthroline aromatic heterocyclic derivatives with triphenylamine and thiophene donors before and after rhenium(I) carbonyl complexation was written by Peng, Yu-Xin;Xu, Dan;Wang, Na;Tao, Tao;Hu, Bin;Huang, Wei. And the article was included in Tetrahedron in 2016.Synthetic Route of C12H7BrN2 This article mentions the following:

The authors have described herein a series of unsym. 1,10-phenanthroline (phen) based aromatic heterocyclic derivatives with triphenylamine (TPA) and thiophene donors (L1-L5) and their resp. neutral tricarbonyl rhenium(I) complexes ([Re(CO)₃Cl(L)] 6a–6e). Comparisons between isomeric compounds L1/L2 and 6a/6b as well as L3/L4/L5 and 6c/6d/6e have been made on their ¹H NMR and UV/visible spectra, single-crystal structures and d. function theory (DFT) calculations The alterations of conjugated system of the whole mols., originating from the introduction of 2-, 3- or 3,8-substituted TPA and thiophene groups of phen, are responsible for the structural and spectral discrepancy of these structural isomers. In particular, the introduction of TPA and/or thiophene donors at 2-position of phen (L1 and L3) leads to smaller band gaps than their resp. 3-substituted isomers (L2 and L4). In addition, rhenium(I) ion complexation could slightly lower the HOMO energy levels but significantly decrease the LUMO energy levels of the mol. system. In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8Synthetic Route of C12H7BrN2).

2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Synthetic Route of C12H7BrN2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

New 1,10-phenanthrolinethiols was written by Hunziker, Max;Hauser, Urs. And the article was included in Heterocycles in 1982.Application of 22426-14-8 This article mentions the following:

Treating 2-chloro- and 2,9-dichloro-1,10-phenanthroline with KHS in EtOH at elevated temperature and pressure gave the corresponding phenanthrolinethiols, which were characterized by spectral and chem. methods. 2,2′-Thiobis(1,10-phenanthroline) and other heteroaryl sulfides derived from 1,10-phenanthroline-2-thiol were prepared by amide promoted nucleophilic substitution of aryl halide by thiolate anion. In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8Application of 22426-14-8).

2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.Application of 22426-14-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Highly sensitive and selective fluorescence chemosensors containing phenanthroline moieties for detection of Zn²⁺ and Cd²⁺ ions was written by Quan, Cong;Liu, Jiayu;Sun, Wei;Cheng, Xinjian. And the article was included in Chemical Papers in 2020.Related Products of 22426-14-8 This article mentions the following:

It is extremely necessary to detect heavy metals sensitively and selectively, especially the ions that will cause great harm to humans and the environment. This work deals with two fluorescent chemosensors and their outstanding role when detecting Zn²⁺ and Cd²⁺ ions. First, a small mol. chemosensor (TPB) has been designed and synthesized via Suzuki reaction using one part of benzene-1,3,5-triyltriboronic acid and three parts of 2-bromo-1, 10-phenanthroline as starting materials. And then, its corresponding macromol. fluorescent chemosensor (PTPB) was synthesized. The IR spectra, mass spectrometry (MS), and ¹H-NMR were used to study the structures of TPB and PTPB. From what has been studied, the TPB and PTPB were stable in a relative wide pH range. As soon as the Cd²⁺ and Zn²⁺ ions added, fluorescence of the two sensors TPB and PTPB was changed obviously. In addition, PTPB was found have better performance to both Cd²⁺ and Zn²⁺ than TPB through the ”mol. wire” mechanism. Job’s plots were also be tested, showing that the combination ratio of TPB and PTPB to Cd²⁺ and Zn²⁺ were both 3:1 (ion/sensor). In addition, the min. detection limits of the macromol. chemosensor PTPB for Cd²⁺ and Zn²⁺ reached 0.424μM and 1.27μM, resp. In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8Related Products of 22426-14-8).

2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.Related Products of 22426-14-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

A multifunctional aggregation-induced emission (AIE)-active fluorescent chemosensor for detection of Zn²⁺ and Hg²⁺ was written by Tang, Aling;Yin, Ya;Chen, Zhao;Fan, Congbin;Liu, Gang;Pu, Shouzhi. And the article was included in Tetrahedron in 2019.COA of Formula: C12H7BrN2 This article mentions the following:

An aggregation-induced emission (AIE)-active fluorescent chemosensor based on a tetraphenylethene (TPE) unit was successfully designed and synthesized. The luminogen could detect Zn²⁺ selectively in a THF solution with the detection limit of 1.24 × 10^-6 mol L^-1. Meanwhile, the luminogen could also detect Hg²⁺ selectively in a THF-water mixture with the water content of 90%, and the detection limit was 2.55 × 10^-9 mol L^-1. Also, the solid-state mechanochromic fluorescence behavior of the luminogen was studied systematically. Indeed, the AIE-active luminogen also exhibited reversible mechanofluorochromic phenomenon involving fluorescent color change from blue to green, and powder x-ray diffraction results indicated that the switchable morphol. conversion between crystalline and amorphous states was responsible for this mechanochromism phenomenon. In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8COA of Formula: C12H7BrN2).

2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.COA of Formula: C12H7BrN2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

A highly practical and convenient halogenation of fused heterocyclic N-oxides was written by Wang, Dong;Wang, Yuxi;Zhao, Junjie;Li, Linna;Miao, Longfei;Wang, Dong;Sun, Hua;Yu, Peng. And the article was included in Tetrahedron in 2016.Synthetic Route of C12H7BrN2 This article mentions the following:

A novel, simple and practical method for the regioselective halogenation of fused heterocyclic N-oxides was developed. It employs Vilsmeier reagent, generated in situ by POX₃ and DMF, as both the activating agent and the nucleophilic halide source. The method is amenable across a broad range of substrates, including quinolines, isoquinolines and the diazine N-oxides, possessing a variety of substitution patterns. Furthermore, all of the reagents associated are cheap and easy to obtain. The potential extension of this method to a one-pot oxidation/halogenation sequence that obviates the need for isolation of the N-oxide intermediates is also presented. In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8Synthetic Route of C12H7BrN2).

2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Synthetic Route of C12H7BrN2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Sigma donor and pi acceptor characteristics of certain NN-bidentate ligands: a DFT Study was written by Maqsood, Syed Raashid;Islam, Nasarul;Bashir, Shabnum;Khan, Badruddin;Pandith, Altaf Hussain. And the article was included in Journal of Coordination Chemistry in 2013.Application In Synthesis of 2-Bromo-1,10-phenanthroline This article mentions the following:

Metal ion binding affinity of three NN bidentate ligands in terms of simple parameters of the conceptual d. functional theory is reported. Role of ligand framework for chelate stabilization for ethylenediamine (en) bipyridyl (bpy), and 1,10 phenanthroline (phen) is quantified on the basis of NCCN dihedral angle (φ) and N-N spatial distance. We find that the sigma (σ) donor character of three NN-bidentate ligands follow the order phen < bpy < en, which is quit opposite to their exptl. observed stability constant data. However, the overall binding affinity order is correlative with the chelate stabilization and pi back acceptance characteristics; thereby explaining the exptl. stability order. We also studied the effect of some electron donating and electron withdrawing substituents on the sigma bonding affinity and pi (π) bonding behavior of the various substituted phen derivatives The overall binding affinity of these derivatives was correlated on the basis of electrophilicity index (ω). σ Donor character for the ligands was observed to vary in the order NH₂ > Ph > OH > CH₃ > H > Br > Cl > COOH > NO₂ for the substitution at 2 and 9 positions. The trend was found in synergism with their Ortho, Para directing efficiencies. In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8Application In Synthesis of 2-Bromo-1,10-phenanthroline).

2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Application In Synthesis of 2-Bromo-1,10-phenanthroline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Neighboring-group effects on the rate of metal ion catalyzed decarboxylation of dimethyloxalacetic acid was written by Claus, Kenneth G.;Rund, John V.. And the article was included in Inorganic Chemistry in 1969.Application of 22426-14-8 This article mentions the following:

Some rates of the metal ion catalyzed reaction of dimethyloxalacetic acid to give 2-oxo-3-methylbutanoic acid and CO2 are reported. The catalysts are 1:1 complexes of 2-substituted 1,10-phenanthrolines with zinc (II) and manganese (II). In the complexes, the substituents are quite close to the metal ions and could affect the reaction rate by several modes of interaction with the metal or the substrate. The principal effect in zinc complexes is the result of the electron-donating power of the substituent. For manganese complexes, steric inhibition of the approach of the substrate to the metal ion seems to be more important. Some amine substituents are examined to see whether they may be able to react directly with the substrate. The syntheses for some new phenanthroline derivatives are reported. In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8Application of 22426-14-8).

2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. Application of 22426-14-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary