2—羟基2‘烷氧基—1,1’—联萘化合物的^1HMNR研究

研究了２－羟基－２＇－异丙氧基－１，１－联萘（３）等联萘化合物＾１Ｈ ＮＭＲ谱或ＣＯＳＹ谱，此类化合物因２及２＇位取代基不同，两个萘环上同位质子不再等价，萘环质子峰增至１２组。化合物３＾１ＨＮＭＲ谱峰的归属表明，萘环环电流各向异性对另一萘环质子的屏蔽作用与作者早期研究结果一致。２（或２＇）位取代基上的质子的化学位移也与另一萘环平面相对位置有关。     

2－羟基－1－萘醛缩苯胺类Schiff碱化合物结构的研究

合成了９个２－羟基－１－萘醛缩苯胺类Ｓｃｈｉｆ碱化合物，通过ＩＲ、１ＨＮＭＲ和１３ＣＮＭＲ测定，对其波谱进行了研究。在１ＨＮＭＲ谱中，得出酚羟基质子的化学位移值与苯环上的间位和对位取代基的Ｈａｍｍｅｔ常数有很好的线性关系：δ＝１４．９６－２．２６σ，ｒ＝０．９７，ｎ＝８。证明了此类Ｓｃｈｉｆ碱化合物的结构为烯醇亚胺结构。     

2,2′-二取代-1,1′-联萘化合物的NMR研究

用二维核磁共振谱（ＣＯＳＹ、ＨＭＱＣ、ＨＭＢＣ、ＦＧ＿ＨＭＢＣ）进一步研究了２，２′－二羟基－１，１′－联萘（１）、２，２′－二甲氧基－１，１′－联萘（２）、２，２′－亚甲二氧基－１，１′－联萘（３）、２，２′－亚乙二氧基－１，１′－联萘（４）、２－羟基－２′－甲氧基－１，１′－联萘（５）、２－羟基－２′－乙氧基－１，１′－联萘（６）、２－羟基－２′－异丙氧基－１，１′－联萘（７）、２－羟基－２′－丁氧基－１，１′－联萘（８）和２－羟基－２′－氧乙酸基－１，１′－联萘（９）等９个２，２′－二取代－１，１′－联萘化合物，确定了它们的氢谱和碳谱谱峰的归属，指出联萘化合物的立体结构、萘环的磁各向异性对质子谱有明显的影响，特别是Ｈ８（Ｈ８′）；而其对环碳的影响可以忽略。     

1－（取代异噁唑基）－1，2，4．三唑和1－（取代嘧啶基）－1，2，4－三唑的合成及生物活性

合成了１５个新的１－（取代异噁唑基）－１，２，４－三唑和１－（取代嘧啶基）－１，２，４－三唑化合物，经元素分析、ＩＲ、１ＨＮＭＲ和ＭＳ证实其结构，并对其代表化合物进行了抑菌及植物生长调节活性的初步观察     

1－（取代吡唑－4－基）－1，2，4－三唑的合成及生物活性研究

合成了２３个新的１－（取代吡唑－４－基）１，２，４－三唑化合物，经ＥＡ、ＩＲ、~１ＨＮＭＲ和ＭＳ确定其组成和结构，并对其进行了抑菌及生长调节活性的初步观察。     

2—羟基—1—萘醛缩苯胺类Schiff碱化合物结构的研究

合成了９个２－羟基－１－萘醛缩苯胺类Ｓｃｈｉｆｆ碱化合物，通过ＩＲ、＾１ＨＮＭＲ和＾１３ＣＮＭＲ测定，对其波谱进行了研究。在＾１ＨＮＭＲ谱中，得出酚羟基质子的化学位移值与苯环上的间位和对位取代基的Ｈａｍｍｅｔｔ常数有很好的线性关系：δ＝１４．９６－２．２６σ，ｒ＝０．９７，ｎ＝８。证明了此类Ｓｃｈｉｆｆ碱化合物的结构为烯醇亚胺结构。     

1，2－双（1＇－苯基－3＇－甲基－5＇－氧代吡唑－4＇－基）－1，2－苯二酮稀土配合物的合成与表征

用萃取法合成了１５种１，２－双（１＇－苯基－３＇－甲基－５＇－氧代吡唑－４＇－基）－１，２苯二酮（ＢＰＭＯＰＰ，简作Ｈ＿２Ｌ）稀土配合物．元素分析确定其化学组成为ＲＥ＿２Ｌ＿３·ｎＨ＿２Ｏ．通过电子光谱、红外光谱、核磁共振谱、热谱、摩尔电导等进行了表征，并讨论了配合物的性质．     

苯甲酸（1H－1，2，4－三唑－1－基）－3，3－二甲基－2－丁酮酯衍生物的合成

用冠醚作催化剂，通过苯甲酸盐同１－溴代－１－（１Ｈ－１，２，４－三唑－１－基）－３．３－二甲基丁酮－２－反应，合成了一系列苯甲酸（１Ｈ－１，２，４－三唑－１－基）－３，３－二甲基－２－丁酮酯类新化合物，并对合成方法进行了探讨。通过ＩＲ、￣１ＨＮＭＲ及元素分析，确定了化合物的结构。     

O－烷基，O－芳基硫代磷酰取代硫脲和O－烷基硫代磷酰－双－取代硫脲的研究（Ⅱ）

用硫氰酸钾与硫代磷酰氯制备了硫代磷酰异硫氰基酯和二异硫氰基酯，并以其与不同胺反应，合成了硫代磷酰取代硫脲和硫代磷酰－双－取代硫脲两系列２０个新的有机磷化合物，经~１ＨＮＭＲ、ＩＲ及元素分析确定了它们的化学结构，测定了它们的生物活性。结果表明只有Ｏ－异丙基，Ｏ－（４－甲基－２－硝基苯基）－Ｎ＇－萘基硫代磷酰硫脲（ＰＤ－１）具有较好的杀菌活性。     

核磁共振方法表征2,2′—二（对羧酸苯氧基）—1,1′联萘

利用＾１ＨＮＭＲ，＾１３ＣＮＭＲ研究了２，２′－二（对羧酸苯氧基）－１，１′－联萘结构，并通过＾１Ｈ－＾１ＨＣＯＳＹ及＾２３Ｃ－＾１Ｈ异核相关谱进一步确定了＾１Ｈ谱和＾１３Ｃ谱中谱峰的归属，为同类化合物的表征提供了一个依据。     

Sc2MgGa2 and Y2MgGa2

Scandium magnesium gallide, Sc₂MgGa₂, and yttrium magnesium gallide, Y₂MgGa₂, were synthesized from the corresponding elements by heating under an argon atmosphere in an induction furnace. These intermetallic compounds crystallize in the tetragonal Mo₂FeB₂‐type structure. All three crystallographically unique atoms occupy special positions and the site symmetries of (Sc/Y, Ga) and Mg are m2m and 4/m, respectively. The coordinations around Sc/Y, Mg and Ga are pentagonal (Sc/Y), tetragonal (Mg) and triangular (Ga) prisms, with four (Mg) or three (Ga) additional capping atoms leading to the coordination numbers [10], [8+4] and [6+3], respectively. The crystal structure of Sc₂MgGa₂ was determined from single‐crystal diffraction intensities and the isostructural Y₂MgGa₂ was identified from powder diffraction data.     

Electrochemical study of (NEt4)2Cl2FeS2MoS2 and (NEt4)2Cl2FeS2MoS2FeCl2

Summary The ability of [MoS₄]^2–, anions to be used as ligands for transition metal ions has been widely demonstrated, especially with Fe²⁺. The present study has been restricted to linear complexes such as (NEt₄)₂ [Cl₂FeS₂MoS₂] and (NEt₄)₂[Cl₂FeS₂MoS₂FeCl₂]. Their electrochemical properties are described: upon electrochemical reduction, these compounds yield MoS₂, as a black precipitate, and an iron complex in solution, assumed to be [SFeCl₂]^2–. The electrochemical reduction goes through two electron transfers, coupled with the breakdown of the molecular skeleton: a DISPl and an ECE mechanism. Depending on the solvent, the following equilibrium may be observed: [Cl₄Fe₂MoS₄]^2–[Cl₂FeMoS₄]^2–+FeCl₂. The equilibrium constant, K_D, was evaluated by differential pulse polarography. K_D is tightly related to the donor number of the solvent.     

The alkali hypophosphites KH2PO2, RbH2PO2 and CsH2PO2

The structures of the hypophosphites KH₂PO₂ (potassium hypophosphite), RbH₂PO₂ (rubidium hypophosphite) and CsH₂PO₂ (caesium hypophosphite) have been determined by single‐crystal X‐ray diffraction. The structures consist of layers of alkali cations and hypophosphite anions, with the latter bridging four cations within the same layer. The Rb and Cs hypophosphites are isomorphous.     

Zur Kenntnis der Dialkalimetalldichalkogenide β-Na2S2, K2S2, α-Rb2S2, β-Rb2S2, K2Se2, Rb2Se2, α-K2Te2, β-K2Te2 und Rb2Te2

On Dialkali Metal Dichalcogenides β-Na₂S₂, K₂S₂, α-Rb₂S₂, β-Rb₂S₂, K₂Se₂, Rb₂Se₂, α-K₂Te₂, β-K₂Te₂ and Rb₂Te₂ The first presentation of pure samples of α- and β-Rb₂S₂, α- and β-K₂Te₂, and Rb₂Te₂ is described. Using single crystals of K₂S₂ and K₂Se₂, received by ammonothermal synthesis, the structure of the Na₂O₂ type and by using single crystals of β-Na₂S₂ and β-K₂Te₂ the Li₂O₂ type structure will be refined. By combined investigations with temperature-dependent Guinier-, neutron diffraction-, thermal analysis, and Raman-spectroscopy the nature of the monotropic phase transition from the Na₂O₂ type to the Li₂O₂ type will be explained by means of the examples α-/β-Na₂S₂ and α-/β-K₂Te₂. A further case of dimorphic condition as well as the monotropic phase transition of α- and β-Rb₂S₂ is presented. The existing areas of the structure fields of the dialkali metal dichalcogenides are limited by the model of the polar covalence.     

Formal [(2+2)+2] and [(2+2)+(2+2)] nonconjugated dienediyne cascade cycloadditions

[reaction: see text] Fluoranthene 2 and heptacycle 3 are easily accessible from the reaction of diyne 1 and norbornadiene (NBD) in the presence of the rhodium catalyst. The unusual [(2+2)+(2+2)] adduct 3 was confirmed by the X-ray crystal structure analysis.     

Crystal Structures of [Bu2Sn(O2PPh2)2], [Ph2Sn(O2PPh2)2], and [PhClSn(O2PPh2)OMe]2. Raman Spectra of [Ph2Sn(O2PPh2)2] and [PhClSn(O2PPh2)OMe]2

[(n‐Bu)₂Sn(O₂PPh₂)₂] ( 1 ), and [Ph₂Sn(O₂PPh₂)₂] ( 2 ) have been synthesized by the reactions of R₂SnCl₂ (R=n‐Bu, Ph) with HO₂PPh₂ in Methanol. From the reaction of Ph₂SnCl₂ with diphenylphosphinic acid a third product [PhClSn(O₂PPh₂)OMe]₂ ( 3 ) could be isolated. X‐ray diffraction studies show 1 to crystallize in the monoclinic space group P2₁/c with a = 1303.7(1) pm, b = 2286.9(2) pm, c = 1063.1(1) pm, β = 94.383(6)°, and Z = 4. 2 crystallizes triclinic in the space group , the cell parameters being a = 1293.2(2) pm, b = 1478.5(4) pm, c = 1507.2(3) pm, α = 98.86(3)°, β = 109.63(2)°, γ = 114.88(2)°, and Z = 2. Both compounds form arrays of eight‐membered rings (SnOPO)₂ linked at the tin atoms to form chains of infinite length. The dimer 3 consists of a like ring, in which the tin atoms are bridged by methoxo groups. It crystallizes triclinic in space group with a = 946.4(1) pm, b = 963.7(1) pm, c = 1174.2(1) pm, α = 82.495(6)°, β = 66.451(6)°, γ = 74.922(6)°, and Z = 1 for the dimer. The Raman spectra of 2 and 3 are given and discussed.     

Die Photoionenspektren von SCl2, S2Cl2 und S2Br2

Photoionization Mass Spectra of SCl₂, S₂Cl₂, and S₂Br₂ Photoionization mass spectra of SCl₂, S₂Cl₂, and S₂Br₂ have been measured. Heats of formation, bond energies, and ionization potentials of fragments have been calculated from appearance potentials.