Since fulvenes show no evidence of ring currents, the chemical shifts of the protons will be found in the normal definite region.
既然富烯不显示环电流存在的迹象,所以质子的化学位移仍然发生在正常的链烯区。
The purpose of this paper is to study persistent currents in the triple-arm ring with an impurity by using quantum waveguide theory.
采用量子波导理论,研究了含杂质的介观三臂环中的持续电流。
On platinum electrode, linear carbonate DEC, DMC and EMC have similar cathodic reduction behavior, but ring carbonate PC has lower cathodic currents than linear carbonates.
研究结果表明,铂电极上线性碳酸酯DEC、DMC和EMC的阴极还原极类似,而环状碳酸酯PC较线性碳酸酯难还原;
On platinum electrode, linear carbonate DEC, DMC and EMC have similar cathodic reduction behavior, but ring carbonate PC has lower cathodic currents than linear carbonates.
研究结果表明,铂电极上线性碳酸酯DEC、DMC和EMC的阴极还原极类似,而环状碳酸酯PC较线性碳酸酯难还原;
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