Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 56413-95-7, is researched, SMILESS is N#CC1=NC(Cl)=C(Cl)N=C1C#N, Molecular C6Cl2N4Journal, Polyhedron called Synthesis and characterization of copper complexes with the 2,3-dicyano-5,6-dimercaptopyrazine ligand: Magnetic properties of a ferrocenium salt, Author is Belo, D.; Figueira, M. J.; Santos, I. C.; Gama, V.; Pereira, L. C.; Henriques, R. T.; Almeida, M., the main research direction is copper mercaptopyrazine cyano complex preparation structure; crystal structure copper mercaptopyrazine cyano complex; antiferromagnetic interaction copper mercaptopyrazine cyano complex.COA of Formula: C6Cl2N4.
(Bu4N)2[Cu(dcdmp)2], Bu4N[Cu(dcdmp)2] and [FeCp*2]2[Cu(dcdmp)2] (H2dcdmp = 2,3-dicyano-5,6-dimercaptopyrazine; Cp* = decamethylferrocenium) were obtained and characterized. (Bu4N)2Cu(Hdcdmp)2 crystallizes in the triclinic system, space group P1̅, Z = 1, with a 9.9512(6), b 10.541(1), c 13.221(1) Å, α 69.756(9), β 88.112(6) and γ 79.658(7)°. Its crystal structure consists of layers of well isolated square planar Cu(dcdmp)22- anions alternating with layers of Bu4N+ cations along b + c, and the magnetic properties in the range 2-300 K are close to those of an ideal paramagnet with an effective magnetic moment of 1.7 μB/f.u. Bu4N[Cu(dcdmp)2] crystallizes in the monoclinic space group C2/c, Z = 8, with a 35.281(4), b 9.501(1), c 21.885(2) Å and β 109.842(9)°, being isostructural with the Au analog previously described. [Fe(Cp*)2]2[Cu(dcdmp)2] crystallizes in the monoclinic system, space group C2/c, Z = 4, with a 15.891(1), b 10.5133(7), c 30.264(3) Å and β 91.105(2)°. Its crystal structure consists of out-of-registry columns, parallel to b, of alternated dianions and side-by-side pairs of cations, …A2-(D+D+)A2-(D+D+). This compound behaves as a paramagnet with weak antiferromagnetic interactions and no ordering down to 1.7 K. The magnetic properties, due to both cation and anion S = 1/2 contributions, show a large anisotropy, ascribed essentially to the g-factor anisotropy of the Fe(Cp*)2cations.
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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate