上海师范大学学报(自然科学版)
上海師範大學學報(自然科學版)
상해사범대학학보(자연과학판)
JOURNAL OF SHANGHAI TEACHERS UNIVERSITY(NATURAL SCIENCES)
2009年
2期
162-168
,共7页
问苯二甲酸%Tb%Eu%水热合成%晶体结构%荧光
問苯二甲痠%Tb%Eu%水熱閤成%晶體結構%熒光
문분이갑산%Tb%Eu%수열합성%정체결구%형광
benzendicarboxylic acid%terbium%europium%hydrothermal synthesis%crystal structure%fluorescences
采用水热法合成和组装具有发光性能的稀土金属配合物分子体系,得到了稀土与间苯二甲酸(H:isophth)配合物[Ln2(isophth),(H2O)].(Ln=Eu,Tb)),这两个配合物都属于单斜晶系P2(1)/n点群.其x射线单晶衍射表明,两个Ln离子处于不同的配位环境中,Eu(1)和Tn(1)离子分别处于9配位的五角双锥和8配位双帽三棱柱配位构型,而Eu(2)和Tb(2)则处于7配位的单帽四方棱柱构型.荧光测试结果表明:二者呈现出较好的荧光性能.
採用水熱法閤成和組裝具有髮光性能的稀土金屬配閤物分子體繫,得到瞭稀土與間苯二甲痠(H:isophth)配閤物[Ln2(isophth),(H2O)].(Ln=Eu,Tb)),這兩箇配閤物都屬于單斜晶繫P2(1)/n點群.其x射線單晶衍射錶明,兩箇Ln離子處于不同的配位環境中,Eu(1)和Tn(1)離子分彆處于9配位的五角雙錐和8配位雙帽三稜柱配位構型,而Eu(2)和Tb(2)則處于7配位的單帽四方稜柱構型.熒光測試結果錶明:二者呈現齣較好的熒光性能.
채용수열법합성화조장구유발광성능적희토금속배합물분자체계,득도료희토여간분이갑산(H:isophth)배합물[Ln2(isophth),(H2O)].(Ln=Eu,Tb)),저량개배합물도속우단사정계P2(1)/n점군.기x사선단정연사표명,량개Ln리자처우불동적배위배경중,Eu(1)화Tn(1)리자분별처우9배위적오각쌍추화8배위쌍모삼릉주배위구형,이Eu(2)화Tb(2)칙처우7배위적단모사방릉주구형.형광측시결과표명:이자정현출교호적형광성능.
Two Eu (Ⅲ) and Tb ( Ⅲ ) complexes {Eu2 (isophth) 3 (H2O)2}n (1), [TB2 (isophth) 3 (H2O) 2}n (2)had been obtained by hydrothermal reaction of lanthanide (Ⅲ) nitrate and 1,3-benzendiicarboxylic acid, and were characterized by X-ray aingle-crystal diffraction. The crystal structure data revealled that they were isostructural. The two Ln3+ ions had different coordination environments. Eu (1) was coordinated with nine atoms in a distorted capped square prism geometry, while Th (1) of complex 2 was liganted to eight atoms in a two - distorted capped triple prism geometry. En (2) and Tb (2) were all coordinated with seven atoms in a pentagonal bipyramid geometry. The emission spectra of the Eu3+ and Tb3+ complexes indicated that they had excellent luminescence properties.
