Investigation of Isomerization of 2—Seleno—1,3,2—diazaphospholidine Derivatives

For the first time the isomerization of 1,3,2-diazaphospholidine-2-sclenide dervatives in refluxing benzene in the presence of trace water was observed. The structures of isomerized products were determined by IR, ^1H NMR,^31P NMR, elemental analysis and X-ray crystallography. The mechanism of isomerization was also proposed.     

CRYSTAL STRUCTURE OF [（bpy）2Ru（4,5—DIAZAFLUOREN—9—ONE][PF6]2

<正> V31H22F12N6OP2Ru, Mr = 885.6. Monoclinic, space group P21/n, a=9. 444(4), b = 14.050(7), c=25. 88(1)(?), β=92. 64(4)°, V = 3429.79(?)3, Dc=1. 712gcm-3, F(000) = 1760, μ= 6. 376cm-1, Z = 4, R=0. 077, Rw = 0. 090. There are three different Ru -N bonds of 2. 03(?), 2. 08(?) and 2. 13(?), respectively, to the two bpy and diazafluoren-9-one ligands in the complex.     

A Novel Fused Phosphorus Heterocycle：4—（1′，2′,3′,4′—Tetrahydro—1,3,2—benzodiaaphosphorin—2′—sulfide）—3,4b,4a—thiazphosphaphenanthridine Derivative

The first example of fused phosphorus heterocyclic 4-[1′-(β-bromoethyl)-4′-oxo-3′-propyl-1′,2′,3′,4′-tetrahydro-1,3,2-benzodiazaphosphorin-2′-sulfide]-1,2,3,4,4a,4b,5,6-octahydro-6-oxo-5-propyl-3,4b,4a-thiazphosphaphenanthridine 4a,2′-dioxide was synthesized in excellent yield by refluxing a mixture of 1-(2-bromoethyl)-2,3-dihydro-3-propyl-1,3,2-benzodiazaphos phorin-4(1H)-one 2-oxide with carbon disulfide in benzene in the presence of triethylamine.     

Novel Blue Light—emitting PPV—based Copolymer Containing Trazole and Carbazole Units

A novel alternating conjugated copolymer containing triazole and carbazole units was synthesized by the Witting reaction. The resulting bipolar conjugated polymer emits a pure light with good thermal stability, which is a promising candidate for polymer light emitting display.     

1—酰氧（胺）—2,8,9—三氧杂—5—氮杂—1—锡杂三环（3.3.3.0^1. …

合成了１４个新化合物，１－酰氧（胺）基－２，８，９－三氧杂－５－氮杂－１－锡杂三环（３．３．３．０＾１．５）十一烷，由ＩＲ，＾１ＨＮＭＲ，＾１３ＣＮＭＲ和＾１１９ＳｎＮＭＲ及元素分析确定其结构，该类化合物在ＣＤＣｌ３中可能形成六配位化合物，而在ＤＭＳＯ中，溶剂分子参与Ｓｎ原子配位，聚合体解聚为六配位化合物。     

Metal Ion Enhanced Phosphorescence of 2,3—Naphtho—10—aza—15—crown—5：A Possible Molecular Photonic Operator

A novel crown ether,2,3-naphtho-10-aza-15-crown-5(NAC) was synthesized.This compound does not show strong fluorescence and phosphorescence due to photoinduced intramolecular electron transfer from the nitrogen lone pair of electrons to the singlet excited state of the naphthalene chromophore.Complexation with heavy-metal ions results in the quenching of the fluorescence and enhancement of the phosphorescence significantly.These observations were interpreted in terms of the binding interactions,between the nitrogen lone pair electrons and the metal cation,which prevent photoinduced intramolecular electron transfer,and the heavy-atom effects which induce quenching of the fluorescence and enhancement of the phosphorescence.These azacrown and heavy-metalbased systems could be useful as potential chemical sensors and molecular photonic devices.     

NaBrO3—CH2（COOH）2—H3PO4—CuL^2＋体系的振荡化学研究

四氮杂大环配合物是生物体内一些金属酶结构单元的模拟物,可作为振荡反应催化剂来加以研究.我们报道的一些四氮杂大环铜(Ⅱ)、镍(Ⅱ)配合物所参与的催化振荡反应体系中采用的底液都是稀H_2SO_4,尚未见以H_3PO_4作底液的报道。然而研究以H_3PO_4作底液的     

1—硫代—1磷杂—2，6，7—三氧杂双环[2,2,2]亲烷—4—甲撑烷氧基硫代磷酰胺的合成

以三氯硫磷、高位阻醇A等为材料，通过三步反应合成了化合物1－硫代－1磷杂－2，6，7－三氧杂双环[2,2,2]亲烷－4－甲撑烷氧基硫代磷酰胺。研究了化合物的^31P NMR和MSo产物的结构经元素分析和核磁共振等证实。     

DL—丙交酯与2—氢—2—氧—1,3,2—氧磷杂环己烷的开环共聚合研究

在三异丁基铝催化下ＤＬ－丙交酯与２－氢－２－氧－１，３，２－二氧磷杂环已烷开环共聚，制备了一类新型水溶性共聚物Ｐ（ＬＡ－ｃｏ－ＴＭＰ），用ＨＮＭＲ、ＩＲ谱对其结构进行了表征，并研究了催化剂用量及不同单体配比对总转化率、共聚物组成及特性粘度的影响。     

1,5—二（2—氨基苯氧基）—N—苯基—3—氮杂戊烷的合成

合成了１，５－二（２－氨基（或硝基）苯氧基）－Ｎ－苯基－３－氮杂戊烷。对它们的结构作了元素分析、红外光谱、核磁共振谱及质谱鉴定。