Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.694-80-4, Name is 1-Bromo-2-chlorobenzene, SMILES is C1=CC=CC(=C1Cl)Br, belongs to chlorides-buliding-blocks compound. In a document, author is Xue, Jia, introduce the new discover, Name: 1-Bromo-2-chlorobenzene.
Synthesis and Structure of [Fe(TPA)Cl-2](ClO4) and [{Fe(TPA)Cl}(2)O](ClO4)(2) Where TPA = Tris-(2-pyridylmethyl)amine
[Fe(TPA)Cl-2](ClO4), where TPA is tris-(2-pyridylmethyl)amine, crystallizes in the orthorhombic space group P2(1)2(1)2(1) with Z = 4, a = 8.6264(10) angstrom, b = 15.459(3) angstrom, and c = 16.008(3) angstrom. The structure was determined at 110 K from 4333 reflections (3520 observed) with R = 0.041 (R-w = 0.082). The iron is pseudo-octahedral with the two chloride ions cis. The Fe-Cl bond trans to the tertiary amine is shorter. [{Fe(TPA)Cl}(2)O](ClO4)(2) exhibits two polymorphic monoclinic forms, and the monohydrate also crystallizes in a monoclinic form. For the P2(1)/c polymorph, Z = 2, a = 10.839(2) angstrom, b = 15.956(3) angstrom, c = 12.416(2) angstrom, beta = 107.024(10)degrees, and the structure was determined at 95 K from 6514 reflections (3974 observed) with R = 0.052 (R-w = 0.099). For the C2/c polymorph, Z = 4, a = 20.5023(17) angstrom, b = 15.2711(13) angstrom, c = 16.1069(11) angstrom, beta = 124.465(4)degrees, and the structure was determined at 161 K from 6250 reflections (3130 observed) with R = 0.0632 (R-w = 0.1229). For the hydrate, P2(1)/n, Z = 4, a = 16.201(2) angstrom, b = 16.980(3), c = 16.451(3), beta = 112.234(5)degrees, and the structure was determined at 100 K from 12,745 reflections (6600 observed) with R = 0.097 (R-w = 0.190). In each of the [{Fe(TPA)Cl}(2)O](2+) units, each iron is pseudo-octahedral with the chloride and oxide ions cis. The oxide bridge is linear, and the two chlorides are anti. The Fe-N distance for the pyridyl ring trans to the oxide bridge is quite long due to the trans influence of the oxide. Graphic The X-ray structures of [Fe(TPA)Cl-2](ClO4), where TPA is tris-(2-pyridylmethyl)amine, and three polymorphs of dimeric [{Fe(TPA)Cl}(2)O](ClO4)(2) are presented and discussed.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 694-80-4 is helpful to your research. Name: 1-Bromo-2-chlorobenzene.