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运用统计理论热力学函数自由能ΔG、焓ΔH、熵ΔS、平衡常数K与粒子平动、振动、转动配分函数关系,并通过变温D-与L-CDBrClF实例计算,证明在宏观温度变量下,可以导致手性分子D圳L平衡中宇称破缺熵差的反号.根据作者科研组14年来,采用变温X衍射、中子衍射、比热、直流和交流磁化率、1H和13C固相核磁共振、拉曼光谱、晶体旋光和双折射、超声测定相变等实验方法,证明Salam假说预言的温度范围(200～250K)存在温度变量诱导的相变,产生自发对称性破缺.在宇称破缺能差(PVED)接近0条件下,宇称破缺熵差导致D和L分子反向的物理行为,产生分叉机制(bifurcationmechanism).D和L分子的能量差别,可能是早期生命起源时,L氨基酸富集的原因.实验还发现,在低温变温下自发对称破缺的复原.由于晶相结构限制分子重排,Salam相变不是D→L的构型相变.
Using statistical theory, the free energy of thermodynamic function ΔG, enthalpy ΔH, entropy ΔS, the equilibrium constant K and the partitioning function of particle translation, vibration and rotation are calculated by the example of variable temperature D- and L-CDBrClF. It is proved that under macroscopic temperature, According to the author’s research group for 14 years, using variable temperature X-ray diffraction, neutron diffraction, specific heat, DC and AC susceptibility, 1H and 13C solid-state nuclear magnetic resonance Resonance, Raman spectroscopy, crystal rotation and birefringence, and phase transition of ultrasonic measurements were used to demonstrate that temperature-induced phase transitions occurred in the temperature range (200 ~ 250K) predicted by the Salam hypothesis, resulting in spontaneous symmetry breaking. When the PVED is close to 0, the difference in the parity-breaking entropy leads to the reverse physical behavior of the D and L molecules, resulting in a bifurcation mechanism. The energy difference between D and L molecules may be the origin of early life , The reason for the enrichment of L amino acids was also found experimentally.The spontaneous symmetry breaking recovery at low temperature and variable temperature was also found.The Salam phase transition was not the D → L phase transition due to the crystal rearrangement of molecular structure.