نتایج جستجو برای: tetra nitro carbazole

تعداد نتایج: 23828  

2011
Yip-Foo Win Chen-Shang Choong Siang-Guan Teoh Ching Kheng Quah Hoong-Kun Fun

In the title compound, [Sn(C(6)H(5))(3)(C(7)H(3)ClNO(4))], the four-coordinate Sn(IV) atom exists in a distorted tetra-hedral geometry, formed by a monodentate carboxyl-ate group and three phenyl rings. The conformation is stabilized by an intra-molecular C-H⋯O hydrogen bond, which generates an S(5) ring. The aromatic ring of the 4-chloro-3-nitro-benzoate ligand makes dihedral angles of 75.64 (...

2008
Ghali Alhouari Abdelali Kerbal Najib Ben Larbi Brahim Bennani Taibi Ben Hadda Helen Stoeckli-Evans

The title compound, C(25)H(20)N(2)O(4), is a new spiro-isoxazoline derivative. It contains a five-membered isoxazoline ring (A), a tetra-lone unit (E and D), a 4-nitro-phenyl substituent (B), and a phenyl ring (C). The isoxazoline ring (A) has an envelope conformation, while the cyclo-hexenone ring (D) has an inter-mediate sofa/half-chair conformation. The aromatic ring of the 4-nitro-phenyl su...

2009
Jin Min Li

The title complex, [Cu(2)(CH(3)COO)(4)(C(16)H(11)N(3))(2)], lies on an inversion centre, with four acetate ligands bridging two symmetry-related Cu(II) ions and two monodentate 9-(pyrazin-2-yl)-9H-carbazole ligands coordinating each Cu(II) ion via the N atoms of the pyrazine rings, forming slightly distorted square-pyramidal geometries. There are weak π-π stacking inter-actions between the pyrr...

Journal: :International Journal of Environmental Research and Public Health 2009
Jong-Su Seo Young-Soo Keum Qing X. Li

Aromatic compounds are among the most prevalent and persistent pollutants in the environment. Petroleum-contaminated soil and sediment commonly contain a mixture of polycyclic aromatic hydrocarbons (PAHs) and heterocyclic aromatics. Aromatics derived from industrial activities often have functional groups such as alkyls, halogens and nitro groups. Biodegradation is a major mechanism of removal ...

Journal: :Macromolecular Rapid Communications 2021

A series of Type I photoinitiators (PIs) based on a nitrocarbazole scaffold are developed and examined for the first time as visible light photopolymerization. Three oxime esters (OXE-M, OXE-V, OXE-P) varying by terminal groups (acetyl, acryloyl benzoyl) attached via ester group originally prepared. As result this, three PIs exhibit excellent photoinitiation abilities in presence acrylate monom...

Journal: :Chemical communications 2015
Yuki Imai Tsuyoshi Kawai Junpei Yuasa

A carbazole-based triple bridging ligand (LH) consisting of two imidazole moieties at 3,6 positions with a diketone unit at the carbazole nitrogen forms carbazole-bridged zinc(II) complexes with structures of [(L(-))4(Zn(2+))n] (n = 2-6), where the strength of aromatic stacking interactions between the carbazole rings increases with an increase in the number of Zn(2+) ions bridged by the imidaz...

The synthesis, structure and biological activity of carbazole compounds has been long focus of research interests in the field of medicinal chemistry. 5,8-dibromo-5,6-dihydro(3,2-a)carbazole A have prepared in good yield by a free radical bromination reaction of 8-bromo-5,6-dihydro9(3,2-a)carbazole with N-bromosuccinimide in carbontetrachloride at ambient temperature.. Compound 2 have prepared ...

2017
Lateef B. Salam Mathew O. Ilori Olukayode O. Amund

The last two decades had witnessed extensive investigation on bacterial degradation of carbazole, an N-heterocyclic aromatic hydrocarbon. Specifically, previous studies have reported the primary importance of angular dioxygenation, a novel type of oxygenation reaction, which facilitates mineralization of carbazole to intermediates of the TCA cycle. Proteobacteria and Actinobacteria are the pred...

2015
Lateef B. Salam Matthew O. Ilori Olukayode O. Amund

In a previous study, three bacterial strains isolated from tropical hydrocarbon-contaminated soils and phylogenetically identified as Achromobacter sp. strain SL1, Pseudomonas sp. strain SL4 and Microbacterium esteraromaticum strain SL6 displayed angular dioxygenation and mineralization of carbazole in batch cultures. In this study, the ability of these isolates to survive and enhance carbazole...

2015
Snehasis Jana Mahendra Kumar Trivedi

Carbazole is a class of phytochemical associated with cancer prevention. It attracted a significant interest in recent time for their usefulness in synthetic heterocyclic chemistry, analytical chemistry and pharmacology. The aim of the study was to evaluate the impact of biofield energy treatment on carbazole by various analytical methods. The study was performed in two groups i.e. control and ...

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