Sharmila N, Sundar T V, Satish G, Ilangovan A, Venkatesan P
Postgraduate and Research Department of Physics, National College (Autonomous), Tiruchirappalli 620 001, India.
School of Chemistry, Bharathidasan University, Palkalaiperur, Tiruchirappalli 620 024, Tamilnadu, India.
Acta Crystallogr C Struct Chem. 2015 Nov;71(Pt 11):975-8. doi: 10.1107/S2053229615018422. Epub 2015 Oct 14.
Isatin (1H-indole-2,3-dione) derivatives represent synthetically useful substrates which can be used to prepare a broad range of heterocyclic compounds. In the title compounds, C18H17NO5, (I), and C15H10FNO2, (II), the isatin ring systems are planar and form a dihedral angle of 73.04 (7)° in (I) and 76.82 (11)° in (II) with the benzyl groups. The bicyclic scaffolds in both compounds are almost superimposable, with an r.m.s. deviation of 0.061 Å. The crystal structures of both derivatives are stabilized by C-H···O interactions. These contacts generate an R(1)2(7) ring motif in (I) and a C(7) chain motif in (II).
异吲哚酮（1H-吲哚-2,3-二酮）衍生物是具有合成用途的底物，可用于制备多种杂环化合物。在标题化合物C18H17NO5（I）和C15H10FNO2（II）中，异吲哚酮环系是平面的，在（I）中与苄基形成73.04 (7)°的二面角，在（II）中与苄基形成76.82 (11)°的二面角。两种化合物中的双环支架几乎重叠，均方根偏差为0.061 Å。两种衍生物的晶体结构均通过C-H···O相互作用得以稳定。这些接触在（I）中产生R(1)2(7)环基序，在（II）中产生C(7)链基序。
