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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >2,6-Bis((E)-((5-benzoyl-2-thioxo-4-phenylpyrimidin-1(2H)-yl)imino)methyl)-4- (methyl)phenol and its Metal(II) Complexes: Synthesis, Spectroscopy, Biological Activity, and Photoluminescence Features
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2,6-Bis((E)-((5-benzoyl-2-thioxo-4-phenylpyrimidin-1(2H)-yl)imino)methyl)-4- (methyl)phenol and its Metal(II) Complexes: Synthesis, Spectroscopy, Biological Activity, and Photoluminescence Features

机译：2,6-双（（E）-（（5-苯甲酰基-2-巯基-4-苯基嘧啶-1（2H）-基）亚氨基）甲基）-4-（甲基）苯酚及其金属（II）配合物：合成，光谱，生物活性和光致发光特性

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The preparation, characterization, magnetic measurements, antimicrobial activity, and photoluminescence properties of a number of metal complexes with a Schiff base ligand derived from 2,6-diformyl-4-methylphenol and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-thione are reported herein. UV/Vis spectra and magnetic measurements infer square planar stereochemistry for Pd~(II) and Pt~(II) complexes, and octahedral arrangement for the other metal complexes. The compounds results in intense emission (where ~λmax = 402 nm) upon irradiation by UV light. The photoluminescence quantum yields and long excited-state lifetimes of the ligand and its complexes were calculated as 42% and 3.94 ns, respectively. The photoluminescence intensities and quantum yields of metal complexes changed upon complexation with various metal ions. The ligand and its complexes are of interest as organic emitting materials for electroluminescent devices. The complexes were additionally evaluated for in vitro the antimicrobial activity against bacterial and fungal strains. While Cu~(II), Co~(II), and Pt~(II) complexes have good antifungal efficiency against yeast (MICs, 80 μg·mL~(-1)), only the complex [Cu(L)(AcO)]·4H_2O had effective and selective antimicrobial activity against all tested microorganisms with MIC values in the range of 40-80 μg·mL~(-1), except for E. coli ATCC 4230. This study suggests that the complex [Cu(L)(AcO)]·4H_2O may be a new potential antimicrobial substance towards bacteria and fungi.
机译：具有Schiff碱配体的许多金属配合物的制备，表征，磁性测量，抗菌活性和光致发光特性，这些配合物来自2，6-二甲酰基-4-甲基苯酚和1-氨基-5-苯甲酰基-4-苯基-1H本文报道了-嘧啶-2-硫酮。 UV / Vis光谱和磁性测量推断出Pd〜（II）和Pt〜（II）配合物的方形平面立体化学，以及其他金属配合物的八面体排列。在紫外光照射下，该化合物导致强烈发射（〜λmax= 402 nm）。配体及其配合物的光致发光量子产率和长激发态寿命分别计算为42％和3.94 ns。与各种金属离子络合后，金属络合物的光致发光强度和量子产率发生变化。配体及其配合物作为电致发光器件的有机发光材料受到关注。另外评估复合物在体外对细菌和真菌菌株的抗微生物活性。尽管Cu〜（II），Co〜（II）和Pt〜（II）配合物对酵母菌（MICs，80μg·mL〜（-1））具有良好的抗真菌作用，但只有配合物[Cu（L）（AcO ）]·4H_2O对所有被测微生物具有有效且选择性的抗菌活性，除大肠杆菌ATCC 4230外，其MIC值在40-80μg·mL〜（-1）范围内。 L）（AcO）]·4H_2O可能是一种新的潜在的针对细菌和真菌的抗菌物质。

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