Synthesis and structure of di(2-phenyl-8-quinolyl) diselenide and zinc bis[(2-phenyl-8-quinolyl)selenolate]

Di(2-phenyl-8-quinolyl) diselenide [2-(C₆H₅)C₉H₅NSe]₂ and zinc bis[(2-phenyl-9-quinolyl)selenolate], Zn [2-(C₆H₅)C₉H₅NSe]₂, have been synthesized. The molecular and crystal structure of the compounds were determined by X-ray structural analysis. The structures of the 2-phenyl-8-quinolylselenol ligand in the molecules of di(2-phenyl-8-quinolyl) diselenide and in the intracomplex compound of zinc are compared. The effect of the phenyl group in position 2 of the quinoline nucleus on the formation of the molecules and their packing in the crystal structure is discussed.     

Synthesis and transformations of 2-(2-quinolyl)cinchoninic acid

2-(2-Quinolyl)cinchoninic acid was synthesized, decarboxylated, and its isoamyl ester and diethylamide were obtained. The new compounds form colored Cu(I) complexes.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 641–642, May, 1971.     

The 13C NMR spectra of tallysomycin and its zinc(II) complex

Using the carbon assignments of bleomycin A₂ as well as those of a series of model compounds, the ¹³C NMR assignments of the antitumor antibiotic tallysomycin (TLM) have been made. With the aid of the carbon assignments the metal binding properties of the new antibiotic toward Zn(II) have been investigated.     

Synthesis and investigation of 2-(2-quinolyl)-5, 6-benzocinchoninic acid and its derivatives

2-(2-Quinolyl)- and 2-(4-phenyl-2-quinolyl)-5,6-benzocinchoninic acids were synthesized, and their derivatives were obtained and decarboxylated. The UV and IR spectra of the compounds were studied, and it was found that all of the new compounds form colored Cu(I) complexes.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 239–241, February, 1973.     

Synthesis of palladium(II) and nickel(II) complexes with tetrabenzoporphine

Palladium and nickel complexes with tetrabenzoporphine were synthesized by reacting tetrabenzoporphine and cadmium tetrabensoporphine with palladium and nickel chlorides in boiling dimethylformamide and identified.     

中位-四-(对十六酰氧基苯基)卟啉及其锌配合物的合成、 表征与液晶性

首次合成出中位-四-(对十六酰氧基苯基)卟啉(TPPPH2)及其锌配合物(简称TPPPZn),研究了其液晶性质,结果表明这种卟啉及其锌配合物具有液晶性质。     

Nitration of 2-(2-quinolyl)thiophene and 5-(2-quinolyl)-2,2′-dithiophene

2-(2-Quinolyl)thiophene is nitrated in the 5 position, while its 2-thiophenyl analog is nitrated in the 3′ and 5′ positions simultaneously.     

Infrared and Raman spectra and vibrational assignments for 4-(dimethylamino)benzaldehyde and its zinc complex

The vibrational spectra of 4-(dimethylamino)benzaldehyde (DABA) and its zinc complex are presented and vibrational assignments are proposed. Significant differences between the spectra of the parent molecule and the complex are observed. Examination of the form of the normal modes facilitates explanation of proposed frequency shifts of ring modes upon complexation. The spectra of the complex are interpreted by employing a quinonoid-type structure for the DABA ligand.     

Synthesis, characterization and electroluminescence of B(III) compounds: BPh2(2-(2-quinolyl)naphtho[b]imidazolato) and BPh2(2-(2-quinolyl)benzimidazolato)

Two novel luminescent boron compounds, BPh₂(2-(2-quinolyl)naphtho[b]imidazolato) (1) and BPh₂(2-(2-quinolyl)benzimidazolato) (2), have been synthesized by the reactions of triphenylboron with appropriate ligands, 2-(2-quinolyl)naphtho[b]imidazole (QNI) and 2-(2-quinolyl)benzimidazole (QBI), respectively. The structure of 1 was determined by single crystal X-ray diffraction, while 2 by spectroscopic methods. The structure of 1 reveals that the boron center is four coordinated. Several types of OLED possessing different colors were fabricated by using 1 as emitter. For the three-layer OLED with the structure ITO/NPB/2/Alq₃/Mg-Ag, an emission band covering the whole visible region from 400 to 750 nm with the maximum brightness of 320 cd/m² was observed, indicating a perfect white light OLED (CIE = 0.33, 0.37). Compounds 1 and 2 form a new family of organometallic emitting materials which could be of interest for practical application.     

2-(2-苯并咪唑)-6-甲基吡啶锌配合物的合成及发光性质

合成了2-(2-苯并咪唑)-6-甲基吡啶及其锌配合物,通过元素分析、摩尔电导率、红外光谱和紫外光谱对产物进行了表征,并运用荧光光谱对配合物的发光性质进行了研究。结果表明,锌配合物在DMF溶液中的荧光最大发射波长为428nm,在固态下的荧光最大发射波长为448nm,均属于蓝光发射,具有作为蓝色发光材料的潜能。     

2-(2-Pyridyl)indandione-1,3 and its zinc(II) and nickel(II) complexes: Synthesis and physicochemical characterization

Inner complex compounds (ICCs) and molecular adducts based on 2-(2-pyridyl)indandione-1,3 have been synthesized for the first time. The structure of the ligand (the preferred tautomer) and the complexes has been studied using X-ray crystallography, 1H NMR spectroscopy, and IR spectroscopy.     

Synthesis of 2-Methyl-4-quinolyl Isothiocyanate

A procedure has been developed for the synthesis of substituted 2-methylquinolin-4-ylthiuronium salts by reaction of 2-methyl-4-chloroquinoline with N-substituted thioureas. Alkaline hydrolysis of these salts yields 2-methyl-4-quinolyl isothiocyanate instead of the expected 2-methylquinoline-4-thiol.     

Meso-trans-diaryldihexadecyltetrabenzoporphyrins and their zinc complexes: Synthesis and spectra

3-[(1-Oxo-1H-isoindol-3-yl)(phenyl)methylidene]-2,3-dihydro-1H-isoindol-1-one, 3-[(1-oxo-1H-isoindol-3-yl)(1-naphthyl)methylidene]-2,3-dihydro-1H-isoindol-1-one, and 3-[(1-oxo-1H-isoindol-3-yl)(9-anthryl)methylidene]-2,3-dihydro-1H-isoindol-1-one were prepared by the reactions of phthalimide with phenylacetic, 1-naphthylacetic, and 9-anthrylacetic acids, respectively. Heating of these precursors with stearic acid in the presence of zinc oxide yielded zinc complexes of meso-trans-diphenyldihexadecyltetrabenzoporphyrin, meso-trans-di(1-naphthyl)dihexadecyltetrabenzoporphyrin, and meso-trans-di(9-anthryl)dihexadecyltetrabenzoporphyrin, respectively. Treatment of the metal complexes with HCl yielded the porphyrin bases. The spectral properties of the compounds were studied.     

Stepwise Synthesis and Spectral Characteristics of meso-trans-Diphenyldi(1-naphthyl)tetrabenzoporphin and Its Zinc Complex

A reaction of phthalimide with phenylacetic acid in the presence of zinc oxide furnished 3-oxoisoindolenyl-3'-oxoisoindolinylidene-1,1'-benzylidine which at heating with 1-naphthylacetic acid in the presence of zinc oxide provided zinc meso-trans-diphenyldi(1-naphthyl)tetrabenzoporphin complex. Proceeding from this compound a meso-trans-diphenyldi(1-naphthyl)tetrabenzoporphin was prepared. The spectral characteristics of compounds obtained were studied.     

2-(N-tosylamino)benzaldehyde thiobenzoylhydrazone and its complexes with copper(II) and zinc(II): Synthesis and structures

2-(N-Tosylamino)benzaldehyde thiobenzoylhydrazone and its copper(II) and zinc(II) complexes with dimethylformamide (DMF) and methanol, [CuL(DMF)] and [ZnL(CH₃OH)], respectively, were synthesized. The structures of the copper(II) complex and the cyclic product of hydrazone oxidation (1,3,4-thiadiazole derivative) were determined by X-ray diffraction analysis.     

Synthesis and characterization of a zinc(II) complex of 1,3-bis(1-benzylbenzimidazol-2-yl)-2-oxopropane

A ligand 1,3-bis(1-benzylbenzimidazol-2-yl)-2-oxopropane (Bobb) and the zinc(II) complex, [Zn(Bobb)₂](picrate)₂ · 2DMF, were synthesized and characterized by elemental analyses, electrical conductivities, IR, and UV. The crystal structures of the ligand and the zinc complex have been determined by single crystal X-ray diffraction. The ligand displays a V-shaped configuration and the Zn(II) cation is six-coordinate by four nitrogens and two oxygens from Bobb. The N₄O₂ donor set is a distorted octahedron.     

2-乙氧羰基-6-(2-苯并咪唑基)吡啶锌配合物的合成、表征及荧光性质

以2-乙氧羰基-6-(2-苯并咪唑基)吡啶为配体,通过液相反应合成了其与氯化锌的金属配合物,通过元素分析、摩尔电导率、红外光谱、紫外光谱、热重等对配合物进行了表征,并利用荧光光谱研究了它的发光性质。结果表明,在360nm紫外光激发下,固体配合物能发射出较强的蓝色荧光,最大发射波长为440nm,具有很好的荧光性质和较高的热稳定性,可以作为一种潜在的荧光光学材料。     

Synthesis of 2-methyl-2-propoxypropyl isocyanide and its Cu(I) tetraflouroborate complex

2-Methyl-2-propoxypropyl isocyanide [CNCH₂C(OPr)(CH₃)₂] and its Cu(I) tetrafluoroborate complex [Cu{CNCH₂C(OPr)(CH₃)₂}₄]BF₄ were prepared in good yields and purities. Both compounds were fully characterized by IR and NMR spectroscopy.     

Synthesis and characterization of biocompatible poly (L-lactide) using zinc (II) salen complex

Abstract

A biocompatible zinc (II) complex based on a tetradentate N,N,O,O-type salen ligand was synthesized, characterized and used for the solvent-free ring-opening polymerization (ROP) of L-lactide in bulk at 180?°C to prepare high molecular weight poly(L-lactide) (M_n : 82,600?Da; M_w : 140,000?Da; PDI: 1.70). Poly(L-lactide) (PLLA) was characterized using FTIR, ¹H NMR, ¹³C NMR, GPC, TGA, DSC, WAXD, and MALDI-ToF. Kinetic measurement was carried out and first-order behavior to monomer was observed. The k _app was found as 6?±?0.001?×?10^?4?s^?1. The biocompatibility of the PLLA was confirmed by in vitro cytotoxicity against NIH/3T3 fibroblast cell line and can be used in biomedical applications.     

Electronic structures and electrophilic substitution in 2-(4-R-2-quinolyl)thiophenes and 5-(4-R-2-quinolyl)-2,2′-dithienyls

The electronic structures and reactivity indexes (RI) of 2-(4-R-2-quinolyl)thiophenes and 5-(4-R-2-quinolyl)-2,2-dithienyls (R = H, COOH, COOC₂H₅, and NHCOCH₃) and their protonated forms were calculated by the Pariser-Parr-Pople (PPP) method. The peculiarities of the geometrical and -electron structures were established. The calculated reactivity indexes are compared with experimental data on the electrophilic substitution reactions of the investigated compounds. A qualitative agreement between the calculated values and the experimental data was established. It is shown that quinoline derivatives of thiophene are less reactive than the corresponding dithienyl compounds in electrophilic substitution reactions.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 751–754, June, 1979.