Organic Molecule Crystal Structure
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Ultem®/ZIF-8 Mixed Matrix Membranes for Gas Separation: Transport and Physical Properties
Mixed matrix membranes are promising options for improving gas separation processes. Zeolitic imidazolate frameworks (ZIFs) have a porous structure similar to conventional zeolites, being capable in principle of separating gases based on their differences in kinetic diameter while offering the advantage of having a partial organic character. This partial org
Mat. Res.. Publicado em: 19/02/2016
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2. Structural study of complexes of copper (II) as models metallic sites of enzymes with oxidative / Estudo estrutural de complexos de cobre (II) como modelos de sítios metálicos de enzimas com atividade oxidativa
We present the structural study, by x-rays diffraction, of two forms on the crystalline and molecular structures of the metal-organic single-crystal compounds Dicloro[N- benzoyl-N-(4-methylphenyl)-N-(2-pyridinyl)-guanidine)]copper(II). Such compound is known for the phenol oxidative catalictic bioactivity. The compound is a copper(II)-guanidine de- rivative
Publicado em: 2009
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3. New catalysts based on oxovanadium (IV) and cucurbit[6]uril. / Novos catalisadores à base de oxovanádio (IV) e Cucurbit[6]urila
Cucurbiturils are versatile molecules used in several branches of chemistry. These molecular cages form a family of homologues from the condensation of glycoluril and formaldehyde in acidic medium. Their applications range from catalysis, photochemistry, organic and inorganic synthesis, materials and supramolecular chemistry. Particularly cucurbit[6]uril, or
Publicado em: 2009
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4. Structural study of complexes of copper (II) as models metallic sites of enzymes with oxidative / Estudo estrutural de complexos de cobre (II) como modelos de sítios metálicos de enzimas com atividade oxidativa
Apresentamos um estudo estrutural, por difracao de raios X, das estruturas cris- talinas e moleculares de um composto metalorganico no estado monocristalino Dicloro [N- benzoil-N-(4-metilfenil)-N-(2-piridinil)-guanidina)] Cobre(II). O qual apresenta atividade biologica de catalise do processo de oxidacao de fenois. O complexo e de cobre(II) com um derivado d
Publicado em: 2009
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5. Structural study of complexes of copper (II) as models metallic sites of enzymes with oxidative / Estudo estrutural de complexos de cobre (II) como modelos de sítios metálicos de enzimas com atividade oxidativa
Apresentamos um estudo estrutural, por difracao de raios X, das estruturas cris- talinas e moleculares de um composto metalorganico no estado monocristalino Dicloro [N- benzoil-N-(4-metilfenil)-N-(2-piridinil)-guanidina)] Cobre(II). O qual apresenta atividade biologica de catalise do processo de oxidacao de fenois. O complexo e de cobre(II) com um derivado d
Publicado em: 2009
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6. An introduction to the methodology of structure determination by single crystal x-ray diffraction: applications to some complexes of lanthanides and transition metals with organic ligands / Introdução aos métodos de determinação de estruturas por difração de raios-X em monocristais: aplicação a alguns complexos de lantanídeos e metais de transição com ligantes orgânicos
The crystal structure of the complexes Ln(ClO4)3.6[PONH2(C6H5)2] where Ln=Eu, La, Cu[NH2(CH3)2CCO2]2, NiBr2.4[AsO(C6H5)3].8H2O (green), NiBr2.4[AsO(C6H5)3.1,5(CH3C6H5).H2O (orange) and of the ligand PONH2(C6H5)2 have been determined by X-ray diffraction. The complexes involving lanthanide ions refined to final R factors of R(Eu)=0.125 and R(La)=0.133 and the
Publicado em: 1983
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7. Structural and functional characterization of the Pseudomonas hydroperoxide resistance protein Ohr
Bacteria have developed complex strategies to detoxify and repair damage caused by reactive oxygen species. These compounds, produced during bacterial aerobic respiration as well as by the host immune system cells as a defense mechanism against the pathogenic microorganisms, have the ability to damage nucleic acids, proteins and phospholipid membranes. Here
Oxford University Press.
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8. Conformational Changes in Bcl-2 Pro-survival Proteins Determine Their Capacity to Bind Ligands*
Antagonists of anti-apoptotic Bcl-2 family members hold promise as cancer therapeutics. Apoptosis is triggered when a peptide containing a BH3 motif or a small molecule BH3 peptidomimetic, such as ABT 737, binds to the relevant Bcl-2 family members. ABT-737 is an antagonist of Bcl-2, Bcl-xL, and Bcl-w but not of Mcl-1. Here we describe new structures of muta
American Society for Biochemistry and Molecular Biology.
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9. Crystallization and preliminary x-ray diffraction analysis of P450terp and the hemoprotein domain of P450BM-3, enzymes belonging to two distinct classes of the cytochrome P450 superfamily.
Cytochromes P450 are members of a superfamily of hemoproteins that are involved in the metabolism of various physiologic and xenobiotic organic compounds. This superfamily of proteins can be divided into two classes based on the electron donor proximal to the P450: an iron-sulfur protein for class I P450s or a flavoprotein for class II. The only known tertia