首页> 外文期刊>Journal of chemical crystallography >Crystal structures of 4,7-phenanthrolino-5,6 : 5 ',6 '-pyrazine tetrahydrate and 1,4,5,8,9,12-hexaazatriphenylene dihydrate
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Crystal structures of 4,7-phenanthrolino-5,6 : 5 ',6 '-pyrazine tetrahydrate and 1,4,5,8,9,12-hexaazatriphenylene dihydrate

机译:4,7-菲咯啉-5,6:5',6'-吡嗪四水合物和1,4,5,8,9,12-六氮杂苯并二水合物的晶体结构

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The crystal structures of 4,7-phenanthrolino-5,6:5' ,6'-pyrazine tetrahydrate (I) and 1,4,5,8,9,12-hexaazatriphenylene dihydrate (II) have been determined from low temperature (173 K) x-ray single crystal diffraction data. I crystallizes in the triclinic system, space group P (1) over bar with a = 11.2687(6), b = 12.4766(6), c = 12.7068(7) Angstrom, alpha = 113.4740(10), beta = 91.605(2), gamma = 114.587(2)degrees, V = 1449.33(13) Angstrom(3), and Z = 4. II crystallizes in the orthorhombic system, space group Pca2(1) with a = 18.187(2), b = 9.2576(11), c = 6.9672(8) Angstrom, V = 1173.0(2) Angstrom(3), and Z = 4. In both structures the planar heterocyclic molecules stack with interplanar distances down to 3.3 Angstrom, which is consistent with self-pi-complexation. The crystal water molecules provide links between the columns of stacked molecules through hydrogen bonds. In each compound the N-C bond lengths fall into two distinct groups (mean values 1.330(3) vs 1.361(1) Angstrom in I and 1.320(3) vs 1.357(5) Angstrom in II), as do the C-C bonds of the central phenyl rings (1.411(4) vs 1.467(1) Angstrom in I and 1.405(5) vs 1.458(4) Angstrom in II). [References: 27]
机译:已从低温下确定了4,7-菲咯啉-5,6:5',6'-吡嗪四水合物(I)和1,4,5,8,9,12-六氮杂苯并二水合物(II)的晶体结构( 173 K)x射线单晶衍射数据。我在三斜晶系中结晶,棒上的空间群P(1)为a = 11.2687(6),b = 12.4766(6),c = 12.7068(7)埃,alpha = 113.4740(10),beta = 91.605(2 ),γ= 114.587(2)度,V = 1449.33(13)埃(3),Z =4。II在正交晶系中结晶,空间群Pca2(1)的a = 18.187(2),b = 9.2576 (11),c = 6.9672(8)埃,V = 1173.0(2)埃(3),Z =4。在这两种结构中,平面杂环分子堆叠时的平面间距低至3.3埃,这与自pi复杂化。结晶水分子通过氢键在堆叠分子的列之间提供连接。在每种化合物中,NC键的长度分为两个不同的组(I的平均值为1.330(3)对1.361(1)埃,II的平均值为1.320(3)对1.357(5)埃),中央的CC键也一样苯环(I中为1.411(4)与1.467(1)埃,II中为1.405(5)与1.458(4)埃)。 [参考:27]

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