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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structures of three 1-oxo-1,2-dihydronaphthalene derivatives
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Crystal structures of three 1-oxo-1,2-dihydronaphthalene derivatives

机译:三种1-oxo-1,2-二氢萘衍生物的晶体结构

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In the title 1-oxo-1,2-di­hydro­naphthalene derivatives, C28H24O6, (I), C34H22O5S, (II), and C27H20O3S2, (III), the cyclo­hexa-1,3-diene rings of the 1,2-di­hydro­naphthalene ring systems adopt half-chair, boat and half-chair conformations, respectively. The carbonyl O atoms attached to the di­hydro­naphthalene ring systems are each significantly deviated from the mean plane of the 1,2-di­hydro­naphthalene ring system, by 0.6162 (12) Å in (I), 0.6016 (16) Å in (II) and 0.515 (3) Å in (III). The mean planes of the 1,2-di­hydro­naphthalene ring systems make dihedral angles of 85.83 (3), 88.19 (3) and 81.67 (8)°, respectively, with the methyl­phenyl ring in (I), the pyrene ring in (II) and the phenyl ring in (III). In (I), the mol­ecular structure is stabilized by an intra­molecular C—H⋯O hydrogen bond, generating an S(6) ring motif. In the crystal of (I), mol­ecules are linked by an inter­molecular C—H⋯O hydrogen bond, which generates a C(8) zigzag chain running along [100]. Adjacent chains are further connected by C—H⋯π and offset π–π inter­actions [centroid–centroid distance = 3.6572 (9) Å], forming a double-chain structure. In the crystals of (II) and (III), mol­ecules are linked into chain structures by offset π–π inter­actions with centroid–centroid distances of 3.5349 (12) and 3.8845 (13) Å for (II) and 3.588 (2) Å for (III). In (II) and (III), the thio­phene rings are orientationally disordered over two sites, with occupancy ratios of 0.69:0.31 for (II), and 0.528 (4):0.472 (4) and 0.632 (5):0.368 (5) for (III).
机译:在标题1-氧代-1,2-二氢萘衍生物C28H24O6(I),C34H22O5S(II)和C27H20O3S2(III)中,1,2-二氢萘环的环己-1,3-二烯环系统分别采用半椅,船形和半椅构型。连接在二氢萘环系统上的羰基O原子与1,2-二氢萘环系统的平均平面分别显着偏离(I)中的0.6162(12)Å,(II)中的0.6016(16)Å和0.515 (III)中的(3)Å。 1,2-二氢萘环系统的平均平面分别与(I)中的甲基苯基环和(II)中的ring环形成85.83(3),88.19(3)和81.67(8)°的二面角(III)中的苯环。在(I)中,分子结构由分子内CHH = O氢键稳定,从而产生S(6)环基序。在(I)的晶体中,分子之间通过分子间的CHH = O氢键连接,从而生成沿[100]延伸的C(8)字形链。相邻的链通过CH-π和偏移π-π相互作用[质心-质心距离= 3.6572(9)Å]进一步连接,形成双链结构。在(II)和(III)晶体中,分子通过π-π相互作用相互作用成链结构,其中(II)和3.588(2)的质心-质心距离分别为3.5349(12)和3.8845(13)Å。对于(III)。在(II)和(III)中,噻吩环在两个位点上定向无序,(II)的占有率分别为0.69:0.31,0.528(4):0.472(4)和0.632(5):0.368(5 )(III)。

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