Covalent

Xem 1-20 trên 113 kết quả Covalent
  • Coordinate covalent bonds: a bond formed when both electrons of the bond are donated by one atom. [H3N: Ag :NH3]+ Ag+ + 2(:NH3) Electron configuration of Ag [Kr]4d105s15P0 Ag+ [Kr]4d105s0 5P0 Sp hybrid orbitals: accommodate 2 pairs of electrons. Linear Complex ion: A metal ion with Lewis base attached to it through coordinate covalent bond. Complex (Coordinate compound): a compound consisting either of complex ions and other ions of opposite charge or of neutral complex species.

    pdf49p doilan 26-01-2013 31 6   Download

  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : A one-dimensional extremely covalent material: monatomic carbon linear chain

    pdf4p dauphong11 06-02-2012 18 4   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A comparative study of non-covalent encapsulation methods for organic dyes into silica nanoparticles

    pdf12p dauphong13 09-02-2012 24 4   Download

  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : From covalent bonding to coalescence of metallic nanorods

    pdf6p dauphong11 06-02-2012 12 2   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Preparation and Characterization of Covalently Binding of Rat Anti-human IgG Monolayer on Thiol-Modified Gold Surface

    pdf6p dauphong17 21-02-2012 27 2   Download

  • Tham khảo luận văn - đề án 'báo cáo khoa học: covalent flavinylation of vanillyl-alcohol oxidase is an autocatalytic process', luận văn - báo cáo, báo cáo khoa học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf10p vinaphone15 28-02-2013 16 2   Download

  • The activity of outer membrane phospholipase A (OMPLA) is regulated by reversible dimerization. However, native OMPLA reconstituted in phospholipid vesicles was found to be present as a dimer but nevertheless inactive. To investigate the importance of dimerization for control of OMPLA activity, a covalent OMPLA dimer was constructed and its properties were compared to native OMPLA both in a micellar detergent and after reconstitution in a phospholipid bilayer.

    pdf8p research12 01-06-2013 12 2   Download

  • In this report, the poly(Tyramine) (PTyr) film structure was further studied and determined, based on IR (Infrared), XPS (X-Ray Photoelectron Spectroscopy), EQCM (Electrochemical Quartz Crystal Microbalance) results. Especially, the immobilization capacity of PTyr was investigated by EQCM in situ measurement. The results showed the film porosity had increased the immobilization capacity of PTyr, compared to other polymer film with the same NH2 surface concentration.

    pdf6p uocvong02 24-09-2015 5 2   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: System in biology leading to cell pathology: stable proteinprotein interactions after covalent modifications by small molecules or in transgenic cells

    pdf10p toshiba23 18-11-2011 13 1   Download

  • Many enzymes use one or more cofactors, such as biotin, heme, or flavin. These cofactors may be bound to the enzyme in a noncovalent or covalent manner. Although most flavoproteins contain a noncovalently bound flavin cofactor (FMN or FAD), a large number have these cofactors covalently linked to the polypeptide chain. Most covalent flavin–protein linkages involve a single cofactor attachment via a histidyl, tyrosyl, cysteinyl or threonyl linkage.

    pdf23p viettel02 22-02-2013 9 1   Download

  • A catalytically competent, homodimeric diketide synthase comprising the first extension module of the erythromycin polyketide synthase was analysed using MS, after limited proteolysis to release functional domains, to deter-mine the pattern of covalent attachment of substrates and intermediates to active sites during catalysis.

    pdf13p vinaphone15 25-02-2013 11 1   Download

  • The benzoacronycine derivative, S23906-1, was character-ized recently as a novel potent antitumor agent through alkylation of theN2 positionof guanines inDNA.We show here that its reactivity towards DNA can be modulated by glutathione (GSH). The formation of covalent adducts between GSH and S23906-1 was evidenced by EI-MS, and the use of different GSH derivatives, amino acids and dipeptides revealed that the cysteine thiol group is absolutely required for complex formation because glutathione disul-fide (GSSG) and other S-blocked derivatives failed to react covalently with S23906-1. ...

    pdf12p fptmusic 16-04-2013 13 1   Download

  • poikilocytes tế bào máu có cuống poikilocytocyte hồng cầu biến dạng poikilohydric không điều chỉnh đ−ợc n−ớc poikiloosmotic biến thẩm thấu poikilothermal biến nhiệt poikilotherms động vật biến nhiệu, động vật máu lạnh point mutagenesis sựu đột biến điểm point mutation đột biến điểm poison chất độc Poisson distribution phân bố Poisson pokeweed mitogen chất kích thích phân bào pokeweed polar body thể cực polar body thể cực polar covalent bond liên kết đồng hoá trị phân cực polar granul...

    pdf38p zues05 22-06-2011 90 47   Download

  • Polymers are materials of very high molecular weight that are found to have multifarious applications in our modern society. They usually consist of several structural units bound together by covalent bonds [1,2]. For example, polyethy- lene is a long-chain polymer and is represented by

    pdf702p beobobeo 01-08-2012 65 42   Download

  • Reaction mechanism: the description of the step-by-step process by which reactants are changed / converted into products. A nucleophile: an electron-rich species that can form a covalent bond by donating 2 electrons to a positive center.

    ppt62p 3dagkhoa 28-10-2010 100 32   Download

  • Cấu trúc của các chuỗi polynucleotide Các nucleotide trong DNA hoặc RNA nối với nhau bằng các mối liên kết đồng hoá trị (covalent) có tên là liên kết 3',5'phosphodiester giữa gốc đường của nucleotide này với nhóm phosphate của nucleotide kế tiếp, tạo thành chuỗi polynucleotide. Vì vậy các chuỗi này bao giờ cũng được kéo dài theo chiều 5'→3' (đầu 5' mang nhóm phosphate tự do và đầu 3' chứa nhóm -OH tự do).

    pdf6p heoxinhkute1 06-08-2010 124 26   Download

  • The beginning student in Organic Chemistry is often overwhelmed by facts, concepts, and new language. Each year, textbooks of Organic Chemistry grow in quantity of subject matter and in level of sophistication. This Schaum’s Outline was undertaken to give a clear view of first-year Organic Chemistry through the careful detailed solution of illustrative problems. Such problems make up over 80% of the book, the remainder being a concise presentation of the material. Our goal is for students to learn by thinking and solving problems rather than by merely being told....

    pdf478p kinhdo0908 11-10-2012 40 18   Download

  • The Project Gutenberg EBook of Elements of Chemistry,, by Antoine Lavoisier This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net Title: Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries Author: Antoine Lavoisier Translator: Robert Kerr Release Date: December 28, 2009

    pdf1156p khangoc2391 26-09-2012 38 15   Download

  • This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online

    pdf500p khangoc2391 26-09-2012 35 14   Download

  • Pituitary gonadotropins, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) play central roles in regulating gametogenesis and the production of gonadal hormones, in fish as in other vertebrates. Pituitary gonadotropins are composed of two non-covalently associated polypeptide subunits, which must be glycosylated, folded, and assembled as a heterodimer to be biologically active.

    pdf5p congvhs 01-10-2010 67 13   Download

CHỦ ĐỀ BẠN MUỐN TÌM

Đồng bộ tài khoản