Extended knowledge of 2-(Chloromethyl)benzo[d]oxazole

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Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 41014-43-1, Name is 2-(Chloromethyl)benzo[d]oxazole. In a document type is Article, introducing its new discovery., 41014-43-1

Benz(2-heteroaryl)cyanoximes and their Tl(i) complexes: New room temperature blue emitters

A series of five 2-heteroarylcyanoximes such as: alpha-oximino-(2- benzimidazolyl)acetonitrile (HBIHCO), alpha-oximino-(N-methy-l-2- benzimidazolyl)acetonitrile (HBIMCO), alpha-oximino-(2-benzoxazolyl) acetonitrile (HBOCO), alpha-oximino-(2-benzothiazolyl)acetonitrile (HBTCO) and alpha-oximino-(2-quinolyl)acetonitrile (HQCO) and their monovalent thallium(i) complexes were synthesized and characterized using spectroscopic methods (1H, 13C NMR, IR, UV-visible, mass-spectrometry) and X-ray analysis. The HBIMCO (as monohydrate) adopts planar trans-anti configuration in the solid state. The crystal structure of “HBOCO” revealed the presence of nitroso anion a, BOCO-, and protonated oxime cation b, H2BOCO+, that form a H-bonded dimer in the unit cell. Both molecules adopt planar structures, but different configurations: cis-anti in the molecule a, and trans-anti for b. This is the first reported case of a zwitterionic pair in oximes and the coexistence of the two geometrical cis/trans isomers in the same crystal. All 2-heteroarylcyanoximes form yellow anions upon deprotonation, which exhibit significant negative solvatochromism in solution. Heterogeneous reactions between hot aqueous solutions of Tl 2CO3 and solid protonated 2-heteroarylcyanoximes HL afford yellow TlL. The crystal structure of Tl(BTCO) shows the formation of centrosymmetrical dimers, which connect with each other to form a double-stranded one-dimensional coordination polymer. The oxygen atom of the oxime group acts as a bridge between the three different Tl(i) centers. The anion is non-planar and adopts a trans-anti configuration in the complex. The polymeric motif in the complex represents a ladder-type structure. Staggered pi-pi interactions between benzothiazolyl groups provide additional stabilization of the structure. Both organic ligands and their Tl(i) complexes exhibit strong room temperature blue emission in the solid state.

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Reference£º
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem