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相关概念视频

Cis-regulatory Sequences02:02

Cis-regulatory Sequences

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Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
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Stability of Substituted Cyclohexanes02:30

Stability of Substituted Cyclohexanes

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This lesson discusses the stability of substituted cyclohexanes with a focus on energies of various conformers and the effect of 1,3-diaxial interactions.
The two chair conformations of cyclohexanes undergo rapid interconversion at room temperature. Both forms have identical energies and stabilities, each comprising equal amounts of the equilibrium mixture. Replacing a hydrogen atom with a functional group makes the two conformations energetically non-equivalent.
For example, in...
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相关实验视频

Updated: Jul 27, 2025

Derivatization of Protein Crystals with I3C using Random Microseed Matrix Screening
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Derivatization of Protein Crystals with I3C using Random Microseed Matrix Screening

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一个对CuCrX的计算研究.

Saloni Saloni1, Prabhat Ranjan2, Tanmoy Chakraborty1

  • 1Department of Chemistry and Biochemistry, Sharda School of Basic Sciences and Research, Sharda University, Greater Noida, 201310, India.

Journal of molecular graphics & modelling
|June 8, 2023
PubMed
概括
此摘要是机器生成的。

铜二基化物 (CuCrX2) 为太阳能电池提供了一个更绿色的替代方案. DFT计算揭示了它们的电子和光学特性,表明它们适用于光电子应用和中间频段太阳能电池.

关键词:
在 CuCrS (((2) 中.在 DFT 方面,它是最重要的.在HOMO-LUMO的能源差距上.光学电子阴性是指光学电子阴性.太阳能电池是一个太阳能电池.

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Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
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科学领域:

  • 材料科学 材料科学 材料科学
  • 计算化学的计算化学
  • 固态物理 固态物理

背景情况:

  • 无半导体对于可持续的太阳能电池技术至关重要.
  • 过渡金属合半导体是光伏应用的有希望的候选者.
  • 通过理论计算了解材料特性可以加速开发.

研究的目的:

  • 研究CuCrX2 (X = S, Se, Te) 的结构,电子,光学和热化学特性.
  • 评估这些材料适用于光电子和光伏设备的适用性,包括中间频段太阳能电池.
  • 为了比较不同交换相关函数的性能,研究这些化合物.

主要方法:

  • 采用了概念密度函数理论 (CDFT) 方法.
  • 使用B3LYP和WB97XD交换相关函数进行了几何优化.
  • 计算了电子带结构,光学特性和全球反应性描述器.

主要成果:

  • 观察到从S到Se到Te的能源差距正在减少.
  • 使用B3LYP/LANL2DZ计算的HOMO-LUMO水平与实验数据保持一致.
  • 计算的频段间隙表明了光电子和中间频段太阳能电池应用的潜力.

结论:

  • 建议使用B3LYP/LANL2DZ组合作为研究CuCrX2化合物的有效计算方法.
  • CuCrX2材料对先进的太阳能电池技术具有有利的性能.
  • 对这些材料进行中频段太阳能电池的进一步探索是有必要的.