Chemistry is an experimental science, Recommanded Product: 432-21-3, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 432-21-3, Name is 2-Amino-6-chlorobenzotrifluoride, molecular formula is C7H5ClF3N, belongs to chlorides-buliding-blocks compound. In a document, author is Konarev, Dmitri, V.
Reaction of (GaClPc)-Cl-III, (SnCl2TPP)-Cl-IV and B(III)ClSubPc with cyanide anions: reduction of macrocycles vs. formation of cyano-containing macrocyclic anions
The reaction of (GaClPc)-Cl-III, (SnCl2TPP)-Cl-IV and B(III)ClSubPc containing phthalocyanine (Pc), tetraphenylporphyrin (TPP) and subphthalocyanine (SubPc) macrocycles with cyanide in the presence of cryptand[2.2.2] under anaerobic conditions yields crystalline salts in which cyano anions substitute chloride anions at Ga-III, Sn-IV or B-III, as well as reducing the macrocycles or adding one or two CN- to them. The reaction of (GaCl)-Cl-III(Pc2-) with CN- yields {crypt(K+)}{(GaCN)-C-III(Pc3-)}(-)center dot 0.5C(6)H(4)Cl(2) (1) in which the Pc2- macrocycle is reduced to Pc3-. Such reduction could probably occur through the addition of CN- to Pc2- forming {Ga-III(CN)[Pc(CN)](3-)}(-) which can decompose further interacting with an excess of CN-. As a result, Pc3- and cyanogene anions are formed. The interaction of (SnCl2)-Cl-IV(TPP2-) with CN- is accompanied by the addition of CN- to the meso-carbon atom of porphyrin forming diamagnetic TPP(CN)(3-) macrocycles in {crypt(K+)}{Sn-IV(CN)(2)[TPP(CN)](3-)}(-) (2). Salt 2 shows a strong NIR absorption band with the maximum at 854 nm whose intensity is comparable with that of the Soret band. The interaction of (BCl)-Cl-III(SubPc(2-)) with three equivalents of CN- is accompanied by the addition of two CN- to carbon atoms of SubPc(2-) closest to meso-nitrogen atoms forming {B-III(CN)[SubPc(CN)(2)](4-)}(2-). Most probably these dianions transfer electrons to C6H4Cl2 producing the {B-III(CN)[SubPc(CN)(2)](3-)}(-) radical anions which form sigma-bonded diamagnetic dianions in {crypt(K+)}(2){B-III(CN)[SubPc(CN)(2)]}(2)(2-)center dot 3C(6)H(4)Cl(2) (3). The remaining carbon atom closest to the meso-nitrogen atom is involved in this dimerization. According to the calculations, the energy of the C-CN bond is minimal for {Ga-III(CN)[Pc(CN)](3-)}(-) enabling further transformation of these anions to {(GaCN)-C-III(Pc3-)}(-) in 1, whereas cyano-containing anions in 2 and 3 with higher energy of this bond are stable towards the elimination of CN. Optical and magnetic properties of 1-3 together with their crystal and molecular structures are presented. The possible ways of the formation of 1-3 are discussed based on DFT calculations.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 432-21-3, in my other articles. Recommanded Product: 432-21-3.