无机化学(5.2)Symmetry and Point Groups (Part 2)
BenzeneEuclidean DistancesAutomorphism GroupsAutomorphismsan euclidean graph associated with a molecule is defined by a weighted graph with adjacency matrix m = [dij], where for i≠ j, dij is the euclidean distance between the nuclei i and j. in this matrix dii can be taken as zero if all ...
Benzene (C6H6) | CAS No: 71-43-2 | MW: 78.11 g/mol 丨organic compound At room temperature, benzene is a colorless, flammable liquid with a sweet, aromatic odor. It is commonly known as the simplest aromatic hydrocarbon. The molecular structure of benzene is composed of six carbon atoms...
It is obtained by condensation of benzene and benzoyl chloride in the presence of aluminum chloride, and then crystallizing in ethanol. categoryflammable liquid toxicity classificationpoisoning acute toxicityoral administration-mouse LD50: 2895 mg/kg; Abdominal cavity-mouse LD50: 727 mg/kg ...
(At 10 g/liter concentration in benzene, a polymer with M¯n equal to 20,000 produces a vapor pressure lowering of about 2×10−3 mm Hg at room temperature. The limits of accuracy of pressure measurements are about half this value.) It is more accurate and convenient to convert this...
Benzene Property Melting point: :5.5 °C (lit.) Boiling point: :80 °C (lit.) Density :0.874 g/mL at 25 °C (lit.) vapor density :2.77 (vs air) vapor pressure :166 mm Hg ( 37.7 °C) refractive index :n20/D1.501(lit.) ...
Comparison of nanocrystalline metallic Al (A) and benzene/organic nanocrystals (B). Experimental determination of the melting enthalpy and entropy values (represented by symbols (●) and (■), respectively) and theoretical calculations (solid line) performed using Eqs. (7.16) and (7.17). (7.16)...
Precursor Products Downstream Products Related Products 1,2-BENZANTHRACENE CAS No: 56-55-3 2,5-Diphenyloxazole CAS No: 92-71-7 Benzene CAS No: 71-43-2 Acetylene CAS No: 74-86-2 Benzotrichloride CAS No: 98-07-7 Methanol CAS No: 67-56-1 ...
The effect of the linking group on mesogenic properties of three‐ring derivatives of pヽarborane and biphenyl Four series of mesogenic derivatives of p‐carborane (series A[0] and A[1]) and their benzene analogues (series B[0] and B[1]) with variable linking groups... T Nagamine,A ...
Relation between solubility and temperature for alkylbenzene sulfonate. 2. Cloud point of nonionic surfactant As the temperature is raised to a certain value, some surfactant solution will become turbid, that is, the solubility of the surfactant will become smaller. The temperature at which the ...