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- The atom that contributes no electrons to a covalent bond. 受體沒(méi)有給共價(jià)鍵提供電子的原子。
- A covalent bond in which both electrons are provided by one of the atoms. 兩個(gè)電子都由一個(gè)原子提供的共價(jià)鍵。
- A substance that provides a pair of electrons for a covalent bond with an acid. 共價(jià)化合物能夠提供一對電子給一個(gè)酸形成共價(jià)鍵的化合物
- In covalent bonding, atoms share electrons. 在共價(jià)鍵聯(lián)中，原子共有電子。
- Further study is needed before the origin of the covalent bond can be considered a settled question. 需進(jìn)一步深入研究方能解決共價(jià)鍵的起源問(wèn)題。
- A molecule or ion that can combine with another by forming a covalent bond with two electrons of the other. 分子，離子可通過(guò)兩個(gè)電子形成共價(jià)鍵而結合在一塊的分子或離子
- Peroxide: Any of a class of chemical compounds in which two oxygen atoms are linked by a single covalent Bond . 過(guò)氧化物:任何由兩個(gè)氧原子以單個(gè)共價(jià)鍵相互結合在一起的一類(lèi)化合物。
- Among them, boric acid derivatives with fluorophore may selectively recognize saccharides or hydroxyl compounds through the formation of covalent bond. 糖化學(xué)在生命科學(xué)中起著(zhù)非常重要的作用,因此對糖的識別和檢測在醫學(xué)、細胞生物學(xué)等領(lǐng)域具有至關(guān)重要的意義。
- A nonpolar covalent bond happens when both atoms have the same strength of electric attraction for the shared electrons. 當兩個(gè)原子對共享電子的引力相同時(shí)形成非極性共價(jià)鍵。
- Chemical and Infrared analysis of purified samples shown that about 10% of total DBM was grafted onto LDPE backbone chain with covalent bond. 產(chǎn)品經(jīng)二甲苯溶解，丙酮沉淀純化數次后，由化學(xué)分析和紅外鑒定表明，在擠出反應中確有40%25以上的DBM單體接枝到聚乙烯鏈上，接枝率可達到0．3DBM／100E。
- A polar covalent bond happens when one electron has a stronger electrical attraction for the shared electrons than the other atom(s). 當一個(gè)原子對共享電子的電吸引強于其它原子時(shí)，形成極性共價(jià)鍵。
- A chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g.,oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond. 一種化學(xué)鍵：由兩個(gè)負電原子（如氧氣或氮）及其間的氫原子組成，其中一邊是共價(jià)鍵，另一邊是離子鍵。
- OBJECTIVE To synthesize mitoxantrone-insulin conjugates through covalent bond, where mitoxantrone will be an anticancer model drug and insulin acted as a vector. 摘要目的探討以胰島素為抗癌藥物導向載體的米托蒽醌-胰島素偶聯(lián)物的合成方法。
- OBJECTIVE To synthesize mitoxantrone-insulin conjugates through covalent bond,where mitoxantrone will be an anticancer model drug and insulin acted as a vector. 目的探討以胰島素為抗癌藥物導向載體的米托蒽醌-胰島素偶聯(lián)物的合成方法。
- The samples were characterized by BET, elemental analysis and TG, showing that the organosilane moieties were grafted onto the surface of porous silica by covalent bond. 對所制備的樣品進(jìn)行了不同手段的表征，包括：BET、元素分析和熱重分析。
- Ceramics primarily have ionic bonds, but covalent bonding is also present. 陶瓷初始狀態(tài)是受離子束縛的，但是還是有共價(jià)鍵結構的。
- To join(adjacent chains of a polymer or protein) by creating covalent bonds. 聯(lián)接通過(guò)形成共價(jià)鍵來(lái)聯(lián)接（聚合物或蛋白質(zhì)的相鄰鏈）
- Results of analysis with IR and ESCA showed that ring -shaped conjugated structures exist in the films. Copper atom may be linked to the polymer either by covalent bond or coordination bond. 紅外光譜和電子能譜的分析結果表明:聚合物薄膜中含有環(huán)狀共軛結構;銅與聚合物以共價(jià)鍵、配位鍵結合.
- 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. 結果:水飛薊賓卵磷脂復合物具有水飛薊賓和卵磷脂的紅外光譜特征,其磷核磁共振波譜顯示水飛薊賓和卵磷脂間以非共價(jià)鍵結合。
