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- bidentate aminoethanethiol 双配位基氨乙基硫醇
- It is easily distinguishable from other congeners on the island by having distinctly bidentate leaf-lobule. 本种可藉由腹瓣具明显的双齿与台湾其他同属物种区别之。
- Under UV irradiation, bidentate nitrites were oxidized to monodentate or bidentate nitrates. 此超氧化物会将双齿亚硝酸基氧化成硝酸基。
- And the FTIR spectroscopy indicated that the products were monodentate and bidentate ethoxylates. 红外图谱表明,乙醇吸附在二氧化硅表面,可形成线式和桥式两种乙醇盐。
- At this moment, came a client, buy claw of the root of bidentate achyranthes, chicken, Huang Lian. 这时,来了一个顾客,买牛膝、鸡爪、黄莲。
- The bidentate phenyl phosphine ligands which had good electron delocalization and chelation acted as a better ligand than monodentate phosphine ligand. 而具有较好的电子离域作用;并且有螯合作用的双齿膦配体性能优于单齿膦配体.
- Ligands occupying one, two, three, and so on, positions are referred to as unidentate, bidentate, tridentate, and so on. 配体占领一、二、三等的位置时被称为单齿、双齿、三齿等。
- However, for bidentate nitrite, it was not coupled with OH groups so the OH groups were influenced at high temperatures. 再者,研究同时发现一氧化氮可再次吸附在存在有双齿亚硝酸基及硝酸基的二氧化钛表面。
- Objective To study and measure the contents of oleanolic acid in the root of Archyranthes bidentate and in various prepared products. 目的研究牛膝及其不同炮制品中齐墩果酸的含量,探讨炮制对牛膝质量的影响。
- Tertiary phosphine ligands are sensitive to air and moisture.Thus we synthesized two stable ligands: the bidentate ON ligand and tridentate ONO ligand. 由于含膦的配体对空气和水比较敏感,所以我们合成了两种新的较稳定的配体:ON型的两齿配体和ONO型的钳型配体。
- Metal-Organic coordination polymer is formed by self-assembly through coordination bond between bidentate or multbentate organic ligand and central metal ion. 金属有机配位聚合物是通过含给电子基团的双齿或多齿有机配体()一种或几种中心金属离子()过配位键自组装而形成的。
- Typical examples are oxalate and ethylenediamine as bidentate ligands, citrate as a tridentate ligand, and ethylenediamine tetraacetate (EDTA) as a hexadentate ligand. 典型的例子是草酸和乙二胺为双齿配体,柠檬酸作为一个三齿配体,和乙二胺四乙酸(EDTA)作为六齿配体。
- When the complex of anhydrous zinc acetate with 1,5-naphthalene diamine was formed, the anhydrous zinc acetate changed from a bidentate ligand to a unidentate ligand. 在无水乙酸锌与1,5-萘二胺形成配位络合物的过程中,无水乙酸锌的结构从双齿型转变成单齿型。
- The following surface species were observed:carbon monoxide (CO),carboxylate structure(COO),bicarbonate ion(HCO_3~=),sim-ple and bidentate carbonate ions(CO_3~=). CO 吸附时形成的表面生成物为:一氧化碳(CO),羧酸基(COO-),碳酸氢盐(HCO_3~-),简单碳酸盐和二配位碳酸盐(CO_3~-)。
- The intramoleculat substitution reaction is reversible.In the atmosphere of CO,the tetradentated complex will recover to bidentate complex with cis-dicarbonyl. 其分子内取代反应是可逆的 ;在CO气氛下该结构又能够回复到二配位结构.
- Metal-Organic coordination polymer is formed by self-assembly through coordination bond between bidentate or multbentate organic ligand and central metal ion . 金属有机配位聚合物是通过含给电子基团的双齿或多齿有机配体()一种或几种中心金属离子()过配位键自组装而形成的。
- The intramolecular substitution reaction is reversible.In the atmosphere of CO,the tetradentated complex will recover to bidentate complex with cis-dicarbonyl. 其分子内取代反应是可逆的,在CO气氛下该结构又能够回复到二配位结构.
- Metal inorganic-organic hybrid materials are formed by self-assembly through coordination bonds between bidentate or multibentate organic ligands and central metal ions. 金属无机有机杂化材料是通过含给电子基团的双齿或多齿有机配体(L)和一种或几种中心金属离子(M)通过配位键自组装而形成的。
- Methods By means of thin layer scanning, contents of oleanolic acid in roots of Achyranthes bidentate,its preparations with wine and with salt solution were measured. 目的研究牛膝及其不同炮制品中齐墩果酸的含量,探讨炮制对牛膝质量的影响。
- About thirty bidentate neutral phosphine ox-ides including carbamoylmethylene phosphine ox-ides(CMPO)and tetraalkylalkylene diphosphineoxides(DPO)used as extractants are listed inthis paper. 列出了30余种双配位基中性氧化膦类萃取剂;其中包括甲氨酰甲撑氧膦(CMPO)和四烷基(或苯基)烷撑双氧膦(DPO)两类;并给出了它们自无机酸介质中萃取某些锕系元素的萃取率.