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7-Diethyl­amino-2-oxo-2H-chromene-3-carboxylic acid

✍ Scribed by Bardajee, Ghasem Rezanejade ;Winnik, Mitchell A. ;Lough, Alan J.

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
292 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

In the title molecular structure, C~14~H~15~NO~4~, all non-H atoms, except for the C atoms of the terminal methyl groups of the diethylamino substituents, are essentially coplanar. In the crystal structure, a two-dimensional network is formed via weak intermolecular C—H...O hydrogen bonds and π–π stacking interactions.

📜 SIMILAR VOLUMES

7-Meth­oxy-2-oxo-2H-chromene-3-carboxyli
7-Meth­oxy-2-oxo-2H-chromene-3-carboxylic acid
✍ Bardajee, Ghasem Rezanejade ;Winnik, Mitchell A. ;Lough, Alan J. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 165 KB

In the title molecule, C~11~H~8~O~5~, the non-H atoms of the coumarin unit are essentially coplanar; the methoxy and carboxylate groups form dihedral angles of 6.5 (4) and 6.7 (4)°, respectively, with this group. In the crystal structure, weak intermolecular C—H...O hydrogen bonds form chains of rin

7-Diethyl­amino-3-[(2Z)-3-(6-meth­oxy-2-
7-Diethyl­amino-3-[(2Z)-3-(6-meth­oxy-2-naphth­yl)prop-2-eno­yl]-2H-chromen-2-one
✍ Yathirajan, H. S. ;Mayekar, Anil N. ;Sarojini, B. K. ;Narayana, B. ;Bolte, Micha 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 154 KB

The geometric parameters of the title molecule, C~27~H~25~NO~4~, are in the usual ranges. The central C=C double bond is __trans__ configured, with the two C atoms slightly twisted out of the plane of the naphthyl group. The dihedral angle between the two fused ring systems is 40.90 (4)°.

Succinimidyl 7-meth­oxy-2H-chromene-3-ca
Succinimidyl 7-meth­oxy-2H-chromene-3-carboxyl­ate
✍ Bardajee, Ghasem Rezanejade ;Winnik, Mitchell A. ;Lough, Alan J. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 254 KB

In the title molecule, C~15~H~11~NO~7~, the dihedral angle between the coumarin unit and the succinimide unit is 72.36 (4)°. The crystal structure is stabilized by weak intermolecular C—H...O hydrogen bonds and π–π stacking interactions.