Abstract

Abstract. In this work, the synthesis and structural study by means of single-crystal X-ray diffraction of compounds of general formula Ch(C6H4CH2X)2 (Ch = O, S; X = Cl, Br, I) is reported. These compounds contain two flexible hydrocarbonated arms –CH2–X in the ortho positions to the Ch heteroatom. These compounds were synthesized through a linear synthesis starting from diphenylether or diphenylsulfide. Based on the structural analysis, we describe the more relevant molecular features as well as the non-covalent interactions that the heavy halogen atoms display with other moieties that promote the cohesion of the crystal arrangement. The Hirshfeld analysis displayed that the X···π, X···X, and C–H···X interactions are quite significant in the crystal arrangement. Resumen. En este trabajo, se describen la síntesis y el estudio estructural de difracción de rayos-X de monocristal de seis compuestos con fórmula general Ch(C6H4CH2X)2 (Ch = O, S; X = Cl, Br, I), que contienen dos brazos hidrocarbonados flexibles –CH2–X en las posiciones orto al heteroátomo Ch. Estos compuestos fueron sintetizados a través de una síntesis lineal, partiendo de difeniléter o difeniltioéter. A través del análisis estructural se describen las características moleculares más relevantes, así como las interacciones no-covalentes que presentan los átomos de halógeno pesados con otros grupos funcionales para dar cohesión a la red cristalina. El estudio de las superficies de Hirshfeld mostró que las interacciones X···π, X···X y C–H···X son muy relevantes en esta cohesión.

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