Crystal structure of 4-(a-hydroxy-/?-nitrobenzyl)isochroman-l,3-dione, Ci6H9N06

C(14) 2 a 0.7703(3) 0.3748(2) 0.3368(1) 0.0435(7) 0.0574(8) 0.0397(7) 0.0016(7) 0.0105(5) 0.0043(6) 0(18) 2 a 0.2232(3) -0.1751(2) 0.7632(1) 0.0732(8) 0.0794(8) 0.0624(8) 0.0066(6) 0.0235(6) 0.0252(6) C(16) 2a 0.4099(3) 0.4892(2) 0.3975(1) 0.0411(7) 0.0434(7) 0.0456(7) 0.0063(5) -0.0005(5) 0.0012(5)