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Crystal Structure of 4-Isonicotinoyl Coumarin

机译:4-异烟酰香豆素的晶体结构

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The structure of 4-isonicotinoylcoumarin was determine by X-ray crystallography. A symmetry operation (-x+2, -y+1, -z) generates the whole molecule. The compound crystallized in a monoclinic system, and was characterized thus: P21/c, a = 7.8507(16), b = 16.361(3), c = 9.826(2)Å, β = 107.13(3)°, Z = 4, V = 1206.2(4)Å3. The crystal structure was solved by direct methods and refined by full-matrix least-squares on F2 to final values of R1 = 0.0568 and wR2 = 0.0926.
机译:通过X-射线晶体学测定4-异烟酰香豆素的结构。对称操作(- x +2,- y +1,- z )生成整个分子。该化合物在单斜晶系统中结晶,因此表征: P 2 1 / c , a = 7.8507 (16), b = 16.361(3), c = 9.826(2)Å,β = 107.13(3)°, Z = 4, V = 1206.2(4)Å 3 。通过直接方法解析晶体结构,并通过 F 2 上的全矩阵最小二乘法将其精炼为 R 1的最终值= 0.0568,并且 wR 2 = 0.0926。

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