父母氨基基的结合复合体
Junjie Jiang1, Wei Fang1, Bo Lu1
1Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|February 29, 2024
概括
研究人员在胺基 (PH) 和化 (HCl) 之间制造了一种罕见的与结合的复合物. 这个复合体表现出独特的反应性,包括H-Cl键插入,但在其他分子的存在下是不稳定的.
科学领域:
- 化学物理 化学物理
- 矩阵隔离光谱法 矩阵隔离光谱法
- 计算化学的计算化学
背景情况:
- 二原子分子胺基 (PH) 是高度反应性的,是胺基的母化合物.
- 涉及高度反应性物种的结合相互作用尚未得到充分理解.
- 描述这种相互作用可以了解化学结合和反应性.
研究的目的:
- 描述一种罕见的与化 (HCl) 结合的素 (PH) 复合物.
- 为了研究PH-HCl复合物的反应性.
- 了解原子在结中的作用.
主要方法:
- 在10K的基基质中进行化 (H2PCl) 的光解.
- 红外 (IR) 光谱用于表征.
- 量子化学计算 (UCCSD(T) -F12a/haTZ) 用于理论分析.
- 光刺激实验用于研究反应性.
主要成果:
- 一个PH和HCl (HP···HCl) 的分子复合物成功生成和表征.
- 量子化学计算和红外光谱证实了原子作为一种键受体.
- 该复合物的结合能 (D0) 确定为-0.6 kcal mol-1.1.
- 在光刺激时,PH-HCl复合物表现出H-Cl键插入,重塑H2PCl.
- 该复合物在N2和HCl的存在下表现出不稳定性,形成更稳定的复合物.
结论:
- 胺基 (PH) 中的原子可以作为键受体.
- PH-HCl复合物表现出独特的光化学反应性,包括键插入.
- PH-HCl复合物的稳定性受到与其他分子竞争的相互作用的影响.
更多相关视频
10:52Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
2.7K
08:46Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
Published on: November 22, 2016
7.8K
相关概念视频
Phosphodiester Linkages
99.8K
Overview
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
99.8K
Hybridization of Atomic Orbitals II
32.3K
sp3d and sp3d 2 Hybridization
32.3K
Hydrogen Bonds
8.5K
A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
8.5K
Molecular Geometry and Dipole Moments
13.0K
The VSEPR theory can be used to determine the electron pair geometries and molecular structures as follows:
13.0K
Valence Bond Theory
8.5K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.5K
Peptide Bonds
74.4K
A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
74.4K
