Crystal and molecular structure of 2,3,6,7-tetramethoxy-9-trichloromethyl-10-carboxymethyl-9,10-dihydroanthracene |
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| Authors: | F Benetollo E Valoti L Ceraulo L Lamartina |
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| Institution: | (1) Istituto di Chimica e Tecnologia dei Radioelementi-C.N.R. Corso Stati Uniti, 4-35020 Padova, Italy;(2) Istituto di Chimica Farmaceutica e Tossicologica Universita' di Milano, Viale Abruzzi, 42-20131 Milano, Italy;(3) Dipartimento di Chimica e Tecnologie Farmaceutiche, Universita' di Palermo, Via Archirafi, 32-90123 Palermo, Italy |
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| Abstract: | Cl3O6C21H21,M
r
=475.75, orthorhombic,P212121,a=21.895(3),b=12.101(2), andc=8.237(2) Å,V=2182.4(7) Å3,D
x
=1.45 g cm–3 forZ=4,  (MoK )=0.71069 Å =3.99 cm–1,F(000) 984, room temperature,R=0.035 for 1877 observed reflections. The molecule exhibits a folded conformation: the dihedral angle between the benzene rings is 28.3(1)°. The central ring is characterized by acis diaxal configuration of hydrogen atoms in the 9, 10 positions, confirming the 13-C NMR results. |
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| Keywords: | |
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