鍵合原子 的英文怎麼說
中文拼音 [jiàngěyuánzi]
鍵合原子
英文
bound atom-
It revealed that hexagonal structure was easily synthesized in the neutral medium, and lamellar structure was inclined to prepare under basic condition, and from the cooperative charge density matching mechanism and function of manganese iron and template molecular, the alkalescence influence on the structure was explained, and appropriate neutral hexadecylamine ( hda ) availed to synthesis of mesophase with more ordered degree for the mediation of packing parameter
通過水熱合成方法對錳氧有序相的合成進行初步研究,探討合成工藝對有序結構的影響:在中性的條件下,易合成六方有序結構產物;在堿性條件下,更易合成層狀結構產物。並從電荷匹配的原則及錳離子與模板劑間鍵合作用解釋了堿量的多少對合成產物結構的影響。If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g
如果通過激光冷卻能使原子速度降至很小甚至為零,光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處,其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小,因此,如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。Interfacial atoms diffusion or covalence by a circulated - argon ion bombardment process could improve the adhesion strength between the coatings and the uranium substrate
循環氬離子轟擊鍍方法可促進使膜-基界面原子間的擴散或鍵合,有利於提高膜-基結合強度。Normally, we use the word bond to describe the linkage between a particular pair of atoms.
通常我們用鍵這個詞來描述指定的一對原子之間的鍵合。A novel ring - enlargement oxidation of polyphenyl substituted cyclopentadienes in air ( or molecular oxygen ) promoted by perchloric acid was described, in which an oxygen atom was inserted into the cyclopentadiene - ring, forming a six - membered pyrylium salts
摘要報導了空氣(或氧氣)存在的條件下,由高氯酸引發多苯基取代環戊二烯發生新穎的碳碳鍵斷裂擴環反應,在此反應中,氧原子插人到環戊二烯環中形成相應的六元環吡喃鹽類化合物。Professor che pioneered the chemistry of reactive ruthenium - ligand multiple bonded complexes, which he subsequently used to elucidate the mechanisms of atom and group transfer reactions with organic substrates. he discovered a series of biomimetic chemical reactions applicable to the synthesis of pharmaceuticals and fine chemicals. he also pioneered the photochemistry of phosphorescent metal complexes and synthesized, by photochemical means, novel types of reactive molecules that exhibit unique properties and reactivities unreachable by ground state molecules
支教授創立活性釕多重鍵配合物化學並用於揭示原子和基團向有機底物轉移的反應機理開拓一系列可應用於藥物合成和精細化學品合成的仿生物化學反應創立磷光金屬配合物光化學,並利用光化學方法合成具有基態分子所無法達到的特殊性質和反應性的新穎物種。In order to meet the requirements of nda measurement, the laboratory of technical research for nuclear safeguards of china institute of atomic energy ( ciae ), is being in charge of developing four sets of nda standards : one set of segmented gamma - ray scanner ( sgs ) uranium standard, one set of sgs plutonhim standard, one set of plutonium isotopic standard, and one set of active well coincidence counter ( awcc ) standard. in this dissertation some pivotal techniques on quality control in developing of nda nuclear standards above were emphatically studied
中國原子能科學研究院核保障技術重點實驗室研製分段y掃描裝置( sgs : segmentedgamma - rayscanner )鈾工作標準樣品、 sgs鈈工作標準樣品、鈈同位素標準樣品和有源中子井型符合計數裝置( awcc : activewellcoincidencecounter )鈾工作標準樣品來滿足核材料nda測量的要求。本論文重點對上述nda核標準樣品研製過程中質量控制的一些關鍵技術進行了研究。In recent years researchers have achieved better performance with compounds such as lithium borohydride, in which the metal atoms form weaker, ionic bonds with groups containing several hydrogen atoms
近年來,研究人員已經製作出效能更佳的復合物,例如硼氫化鋰,在這種金屬氫化物中,金屬原子與氫原子團(由數個氫原子組成)之間,是以較弱的離子鍵鍵結。In the complex these atoms are each bound to one central atom and not to each other.
在絡合物中,這些原子都和中心原子成鍵,而彼此不成鍵。After a series of reactions, an ester which is a derivative of ferrocene is obtained, then using the ester react with 1, 8 - naphthalenediamme, o - m -, p - phenyleiiediamine, ethylenediamine and 4. 4 ' - - biphenyldiamine respectively, polymer ( i ) ( ii ) ( iii ) ( iv ) ( v ) and polymer ( vi ) are obtained at the final part, we have discussed in brief the general properties of polymer ( i ) - { vi ) and analyzed systematically hnmr ir spectrum tg - dt diagram and molecular weight distribution of these polymers
簡要討論了聚合物( i )一( vi )的一般性質,對聚合物的核磁共振譜、紅外光譜、 t (卜刃t圖以及分子量分佈進行了系統研究。本文對聚合物( i ) 、 ( 111 )和(硯)的核磁共振譜和紅外光譜進行了分析,研究結果表明:聚合物中的援基上的氧原子能與芳胺上的氫原子形成分子內氫鍵,使聚合物的分子內出現了一個平面六元環結構,並山于分子內氫鍵的存在And tg - dsc. 3. n, n ' - disalicylidenedianilines and its transition metal complexes of nicl2 6h2o are synthesized by liquid and solid state reaction at room temperature, and their thermochromism are investigated by ir, far i. r
文中的配合物就是其中之一,中心離子是與c = n雙鍵的n原子以及苯環上鄰位的羥基的氧原子同時進行配位的。Van der waals ( vdw ) complexes are weak bonding complexes formed by atoms or molecules through interaction of electric multipole moments and dispersion forces. these complexes are characterized by their comparatively low binding energy ( 100 - 1000cm - 1 )
范德瓦爾斯( vdw )復合物是原子或分子間通過多極矩和色散相互作用形成的弱鍵能復合物,它們的鍵能比較弱,一般為100 1000cm ~ ( - 1 ) 。Recent progress in indium ( iii ) compounds promoted organic reactions and their application in organic synthesis is reviewed in this paper, in which special efforts have been given to carbon - carbon and carbon - heteroatom bond formation reactions
摘要綜述了近年來三價銦化合物促進的多種有機反應及其在有機合成中的應用,其中重點討論了三價銦化合物促進下的碳碳鍵和碳雜原子鍵的形成反應。Synthesis of dithiotricyanic acid immobilized silica gel and its application to the faas determination of gold after on - line preconcentration and separation
二巰基取代三聚氰酸鍵合硅膠的合成及其在金的在線預濃集分離火焰原子吸收光譜分析中的應用The properties of cn thin films such as their morphology, component, crystal structure and the bonding structure and the relation between those properties and the gas - phase reaction parameters were discussed, showing that the deposition of p - c3n4 thin film is the compete result of various reaction processes in the dynamics balance conditions ; the process of cn films depo sition is diagnosed in situ through the optical emission spectra technique, the effects of experimental parameters on the concentration of the precursors and the gas - phase reactions in the plasma have been obtained ; the main reaction precursors for film deposition identified ; the relation between the characteristics of cn thin films and the reaction process in the plasma is analyzed. the cn thin films deposition under different substrate temperatures in high pressure pe - pld shows that the si atom of the substrate has participated the cn films growth process, based on this the growth mode of cn thin films on the si substrate is proposed. the further experiment of cn thin films deposition on si substrate scratched by diamond as well as covered with fe catalyzer has been attempted, which indicates that changing the dynamics conditions of the surface reaction can alter the growth characteristic of the cn thin films and can enhance obviously the films growth rate
採用pld技術進行了碳氮化合物薄膜沉積,得到了含氮量為21at的cn薄膜;研究了襯底溫度和反應氣體壓強對薄膜結構特性的影響,給出了cn薄膜中n含量較小、 sp ~ 3鍵合結構成分較少和薄膜中僅含有局域cn晶體的原因;引入脈沖輝光放電等離子體增強pld的氣相反應,給出了提高薄膜晶態sp ~ 3鍵合結構成分和薄膜的含n量可行性途徑;應用pe - cvd技術以ch _ 4 + n _ 2為反應氣體並引入輔助氣體h _ 2 ,得到了含n量為56at的晶態cn薄膜;探討了cn薄膜形貌、成分、晶體結構、價鍵狀態等特性及其與氣體壓強和放電電流的關系,證明了- c _ 3n _ 4薄膜沉積為滿足動力學平衡條件的各種反應過程的競爭結果;採用光學發射譜技術對cn薄膜生長過程進行了實時診斷,得到了實驗參量對等離子體中活性粒子相對濃度和氣相反應過程的影響規律,給出了cn薄膜沉積的主要反應前驅物,揭示了cn薄膜特性和等離子體內反應過程之間的聯系;採用高氣壓pe - pld技術研究了不同襯底溫度條件下cn化合物薄膜的結構特性,揭示了si原子對薄膜生長過程的影響,給出了si基表面碳氮薄膜的生長模式;在金剛石研磨和催化劑fe處理的si襯底上進行cn薄膜沉積,證明了通過控制材料表面動力學條件可以改變碳氮薄膜結構特性,並可顯著提高晶態碳氮材料的生長速率。The bond in which the linkage pair of electrons are providedby one of the bonding atoms
一個鍵合原子用以聯結一對電子的鍵。Carbonyl groups readily attach themselves to nickel or cobalt atoms, but not so strongly that they cannot link to other molecules and jump ship to form larger molecules
羰基很容易與鎳或鈷原子結合,可是鍵結並不強,因此它還是可以與其他分子結合,甚至跳船形成更大的分子。To hydrogenated amorphous silicon ( a - si : h ), however, it has much less defects than non - hydrogenated a - si, for the sake of much hydrogen which eliminate the defects by making a bond with non - connected si bond. with these virtue, a - si : h accord with device quality. the films of a - si : h have widely used in solar cell, film transistor and flat display
對于氫化非晶硅( a - si : h ) ,由於氫通過無連接端的硅原子鍵合來消除缺陷,使得氫化非晶硅的缺陷密度比未氫化的非晶硅大大降低了,從而使氫化非晶硅符合器件級質量材料的要求。The researching result is shown that an electron divided equally trend and an action of bond forming exist in brass atom and zinc atom in brass substtate. so, the electro - negativity equilibrium principle developed by sanderson et al, may be extend to the system such as brass under different conditions. the electro - negativity equilibrium was produced during the process from pure brass and pure zinc to brass - zinc alloy, and the difference of chemical properties between alloy and pure material is great
結果顯示黃銅中銅鋅原子間存在一定的電子「均分」趨勢,使銅鋅原子間存在一定的成鍵作用,可以將sanderson等人提出的「電負性均衡原理」有條件地推廣到黃銅這類合金體系中,正是這種銅鋅形成合金時所產生的電負性均衡,使得黃銅中的銅鋅與單質狀態下的銅鋅相比,在化學性質上發生了差異,且增強了黃銅的穩定性,限制了黃銅中的鋅在鍍液中滲出。Oxygen atoms in the air are known to actively react with the fresh gaas. it was observed that the ga - o bond is stronger than that of as - o and that ga atoms preferentially migrate towards the surface leaving vacancies behind in the subsurface region. this behavior can convert the subsurface layer into an as - enriched one
本文分析了硫鈍化后源漏飽和電流減小的原因,認為gaas表面極易被空氣中的氧原子氧化,由於ga - o鍵比as - o鍵結合的更緊, ga原子優先向表面移動,這導致亞表面層成為富as層。分享友人