单词 | Covalent |
例句 | 1. When small atoms bond together through ionic or covalent chemical bonds, the compactness of the bond makes it extremely strong. 2. The valency of an atom in a covalent molecule is the number of electrons shared by the atom in forming the bond. 3. Few bonds are exclusively ionic or covalent; instead, most are hybrids. 4. Some inorganic compounds with covalent characteristics also have chain structures. 5. Bonding may be ionic or covalent, depending on whether valence electrons are transferred or shared. 6. What's the definition of the covalent bond? 6. Wish you will love and make progress everyday! 7. In covalent bonding, atoms share electrons. 8. Additionally, covalent modifications have effect on the mobility of some proteins. 9. The electrovalent bond weakens and the covalent bond strengthen between manganese and oxygen due to ion polarization effect, which makes the spinel structure more stable. 10. Glucose oxidase(GOD)was attached to glassy carbon electrodes by covalent binding with dicyclohexylcarbodiimide as an activator. 11. Ceramics primarily have ionic bonds, but covalent bonding is also present. 12. The most commonly used method for the covalent binding of biomolecules onto 1-D nanostructures is through the diimide-activated amidation of carboxylic acid terminated nanostructures. 13. Covalent bonds between chromogen and macromolecule chains enhance their photochemical stability, increase their whitening performance and fluorescence quantum yield. 14. The non- covalent interaction of 7-hydroxy flavone and its phosphate with DNA was studied using ethidium bromide(EB)as a probe. 15. In exactly the same way, an atom such as a halogen atom in a covalent molecule can show spin-orbit coupling. 16. Bond enthalpies can also be used to calculate the enthalpies of reactions involving covalent molecules. 17. This basis is then applied to a variety of covalent molecules with discussions of bond lengths and angles and hence molecular shapes. 18. It'shows that the high Tc superconductors are the crystals with both ionic and covalent properties. 19. A substance that provides a pair of electrons for a covalent bond with an acid. 20. This also explains the Glycoconjugate ( Glycoproteins, Proteoglycans, Glycolipids ) Sugar chain of covalent connectivity combination. 21. In terms of average energy distribution of air gap with Monte Carlo simulation, the corresponding voltage to dissociate the given covalent bond is indicated. 22. Polyphosphazenes are a novel biodegradable polymer with an inorganic backbone composed of alternating single and double covalent bond and alternating phosphorous and nitrogen atoms. 23. And so Pauling went further and said this is the purely covalent component. 24. The immobilization of prostaglandin synthetase from microsomes of sheep vesicular glands by means of covalent binding to carrier is described. 25. In the past, Japan's closed approach made sense , admits Mr Kohyama, the boss of Covalent. 26. Rather, the wave function is time - independent mixture of covalent and ionic functions. 27. Considering when most of different atoms combine together, the covalent bond and the electrovalent bond are concomitant. 28. It is showed that the ammonium sulfamate could anchor on the surface of the SWNTs via covalent bonds through the hydrothermal routes. 29. The structure of immunosensor is prepared by the following steps: oxidization, silanization, glutaraldehyde cross-linker, and covalent binding of antibody. 30. The results demonstrate that the proposed new fitting procedure shows a fairly good feasibility to the shell model potential for covalent bond molecule. 31. The stability of the physical properties of the produced vinyl polymer hydrogel can be enhanced by controlling the amount of covalent crosslinks. 32. A covalent enzyme - substrate intermediate with saccharide distortion in a mutant T 4 lysozyme. 33. To join ( adjacent chains of a polymer or protein ) by creating covalent bonds. 34. The covalent mode of enzyme immobilization ensures that the sensor process good reproducibility and long - time stability. 35. This article surveyed the chemical modification methods of food proteins, including acylation, deamidation , phosphorylation, glycosylation, covalent cross-linking effect etc. 36. L-tryptophan and L-tyrosine were used as chiral reagents on the covalent functionalization of MWNT. The product was characterized with SEM, FT-IR Spectrum and Electrochemical method. 37. A polyacrylate supported imidazole group, as an intelligent polymer catalyst, was designed and synthesized by linking of polyacrylate chloride with histidine in covalent bond. 38. OK, he also, let me see, he also, lastly, to close us out, he also developed an analytical expression for the energy of that covalent bond, which is really what we want. 39. Potential dissociation of the binder can be corrected by using covalent immobilization ( 24 , 25 ) . 40. This use of the materials containing Covalent form by initiating energy form of light oil mask. 41. Pauling and said the unequal sharing of electrons in a covalent bond can explain that extra energy. 42. The relations of the covalent bond lengths calculated by the model agree with the empirical ones. 43. The most common examples are organic compounds, isomers of nitrite esters in which a carbon atom is linked by a covalent bond to the nitro group's nitrogen atom. 44. Further study is needed before the origin of the covalent bond can a settled question. 45. However, as a covalent chemical compound with the wurtzite crystal structure, A1N is not easy to sinter. 46. The former is primarily formed by covalent bond electrovalent bond, while the later is obtained by molecular deposition (MD) and SAMs based on chemisorption. 47. It is almost always the electron - pair donor ( nucleophile ) in a covalent Bond. 48. The covalent latex antigen did not react with sera of patients of Trichooephalus trichiarus, Ascaris lumbricoides, and Ancylostoma ducdenale, and the specificity was 91.5%. 49. Many multi chromophoric organic dyes with covalent linkage between the chromophores, one of which can act as a triplet acceptor of the excess energy, have been synthesized and studied. 50. Halogen bond is known as a kind of non - covalent intermolecular interaction. 51. An organic coordination (complexing ) compound in which the metal ion is bound to atoms of nonmetals, e. g. nitrogen, carbon, or oxygen, to form a heterocyclic ring having coordinate covalent bonds. 52. The results of FT-IR and SEM showed that nano-silica and polylactide are connected with covalent bonds, and inorganic phases are dispersed in polylactide homogeneously. 53. The chemical modification methods of food proteins are summarized, including acylation, deamidation, phosphorylation, glycosylation, covalent cross-linking effect etc. 54. Peroxide: Any of a class of chemical compounds in which two oxygen atoms are linked by a single covalent bond. 55. The ability of an atom to attract electrons, and in particular, in a covalent bond. 56. A covalent bond is any time we have a pair of electrons that is shared between two different atoms. 57. SiC is combined by and Si by covalent bond, Which is a kind of non-oxide materials. 58. The nonlocal body moment causes the stress asymmetric and itself is caused by the covalent bond formed by the reaction between atoms. 59. Additionally, the pendant amino groups on the poly(thionine) chains enabled poly(thionine) modified electrode to immobilize phosphate group terminated DNA probe via covalent linkage . 60. The attraction between covalent bonds molecules is the interaction of electrical dipole moment. 61. Covalent produces 60 % of the containers that hold wafers as are turned into computer chips. 62. Due to the absence of active hydrogen atom on soft segment, an covalent bond can be found between dye molecule and soft segment. 63. Objective : To confirm whether silybin lecithin complex ( SLC ) is combined covalent bonds or other sub bonds. 64. Since the energy of this radiation is 100 to 72 kcal , it is sufficiently strong to cleave covalent bonds and cause yellowing and embrittlement of organic polymers. 65. These covalent nitrites are constitutional isomers of the nitro compounds, nitric acid derivatives (R-NO2), in which the bonding is from carbon to nitrogen. 66. Crystals may be classified as either ionic or covalent by analogy with molecules. 66. try its best to collect and create good sentences. 67. Chemical modification as manifested in crosslinked enzyme crystal, covalent attachment of polymers and surface modification useful. 68. When dyeing, 3-carboxyl pyridine group disconnects froms-triazine, and the cellulosic carboxylic group reacts withs-triazine rapidly to form a covalent bond, thus effects the colour fixation. 69. Likewise, the element that is a good electron acceptor in an electron transfer reaction is going to be the element that is going to hog the electrons in a covalent bond. 70. Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds. 71. When we're talking about r for internuclear distance, we're talking about the distance between two different nuclei in a bond, in a covalent bond. 72. It is based on the ordered, stable mercapto self assembled monolayer formed on gold surface, which immobilized IgG with covalent bond. 73. Well, if it is a good electron donor in an electron transfer reaction, if the same element finds itself in a covalent bond, it is going to be a good electron donor, although it is not full transfer. 74. The cysteine-containing peptides from the tryptic digests of the complex protein mixtures were selected by covalent chromatography based on thiol-disulfide exchange, identified by mass spectrometry. 75. The cohesion between aluminium and the interlayer is resulted from the metallic bond and the cohesion between the enamel and the interlayer is brought about by the ionic bond and covalent bond . 76. FTIR analyses showed that the ligands are linked by covalent bond on membranes. 77. Results:SLC possesses the characteristics of the infrared spectrum of silybin and lecithin, its nuclear magnetic resonance spectrum showed that SLC was combined by non covalent bond. |
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