1) four-coordinated Cr~(4+) laser center
四配位四价Cr激光中心
2) quadridentate behavior
四齿配位
1.
Lanthanide perchlorate complexes with the ligand N, N'-dimethyl-N, N'-diphenyl-3, 6-dioxaoctane diamide(L) have been prepared in non-aqueous media and they can be expressed with the general formula [Ln(L)2(H2O)n] (ClO4)3(for Ln=La, Pr, Nd, Sm, n=2; for Ln=Eu, Tb, n=1) in all the complexes, the ligand shows quadridentate behavior.
在非水介质中由轻稀土高氯酸盐与配体三甘双酰氮甲基苯胺(L)形成的6种具有稀土特征颜色的固体配合物,通式为[Ln(L)2(H2O)n](ClO4)3(Ln=La,Pr,Nd,Sm时,n=2;Ln=Eu,Tb时,n=1;不包括Pm),在这些新配合物中,配体L表现为四齿配位行为。
3) tetrahedral BO 4
四配位BO4
1.
The results showed that the tetrahedral BO 4 and the trigonal BO 3 were detected as the basic units in B 2O 3/ZrO 2 catalyst.
结果表明 ,B2 O3 在ZrO2 表面以三配位BO3 与四配位BO4结构单元存在 。
4) tetra-coordinated silicon
四配位硅
1.
Copolymerized emulsion (PUA emulsion) with core-shell structure was prepared with aqueous polyurethane modified by acrylate and this emulsion was further modified by tetra-coordinated silicon monomer based on ethylene.
采用丙烯酸酯对水性聚氨酯进行改性,制备了具有核壳结构的共聚乳液(PUA乳液),并在此基础上引入乙烯基四配位硅单体对PUA乳液进行改性。
6) quadridentate
[英][,kwɔdri'denteit] [美][,kwɑdrə'dɛntet]
四配位体
补充资料:四十一位
【四十一位】
(名数)为菩萨之阶位,十住,十行,十回向,十地,及等觉是也。以此四十位修行之功德,而庄严佛果,故言四十一地之璎珞等。(参见:五十二位)
(名数)为菩萨之阶位,十住,十行,十回向,十地,及等觉是也。以此四十位修行之功德,而庄严佛果,故言四十一地之璎珞等。(参见:五十二位)
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