data_2003250 _journal_name_full 'Acta Crystallographica' _journal_year 1995 _journal_volume C51 _journal_page_first 491 _journal_page_last 494 _publ_section_title ; Microbial Transformation of a Dihydroxybiphenyl ; _chemical_formula_sum 'C12 H12 O4' _chemical_formula_weight 220.23 loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,y+1/2,-z' _symmetry_space_group_name_H-M 'P 21' _cell_length_a 6.929(3) _cell_length_b 6.725(3) _cell_length_c 10.778(5) _cell_angle_alpha 90 _cell_angle_beta 99.27(4) _cell_angle_gamma 90 _cell_volume 495.7(4) _cell_formula_units_Z 2 _exptl_crystal_density_diffrn 1.476 _exptl_crystal_density_meas ? _diffrn_radiation_type 'CuK\a' _diffrn_radiation_wavelength 1.54056 _cell_measurement_reflns_used 25 _cell_measurement_theta_min 20 _cell_measurement_theta_max 25 _exptl_absorpt_coefficient_mu 0.88 _cell_measurement_temperature 235 _exptl_crystal_description 'plate' _exptl_crystal_size_max '0.35 {1\=10}' _exptl_crystal_size_mid '0.34 {110}' _exptl_crystal_size_min '0.016 {001}' _exptl_crystal_size_rad ? _exptl_crystal_colour 'transparent and colourless' _chemical_compound_source 'recrystallization from ethyl acetate' _diffrn_measurement_device 'Enraf-Nonius' _diffrn_measurement_method '\w/2\q' _exptl_absorpt_correction_type 'none' _exptl_absorpt_correction_T_min ? _exptl_absorpt_correction_T_max ? _diffrn_reflns_number 3726 _reflns_number_total 1885 _reflns_number_observed 1769 _reflns_observed_criterion I>1.96\s(I) _diffrn_reflns_av_R_equivalents 0.055 _diffrn_reflns_theta_max 70 _diffrn_reflns_limit_h_min -8 _diffrn_reflns_limit_h_max 8 _diffrn_reflns_limit_k_min 0 _diffrn_reflns_limit_k_max 8 _diffrn_reflns_limit_l_min 0 _diffrn_reflns_limit_l_max 13 _diffrn_standards_number 3 _diffrn_standards_interval_count ? _diffrn_standards_interval_time 60 _diffrn_standards_decay_% <1.4 _refine_ls_structure_factor_coef F _refine_ls_R_factor_obs 0.046 _refine_ls_wR_factor_obs 0.053 _refine_ls_goodness_of_fit_obs 2.84 _refine_ls_number_reflns 954 _refine_ls_number_parameters 146 _refine_ls_hydrogen_treatment 'noref' _refine_ls_weighting_scheme 'w = 1/[\s^2^(F~o~) + 0.0001(F~o~)^2^]' _refine_ls_shift/esd_max 0.17 _refine_diff_density_max 0.22 _refine_diff_density_min -0.28 _refine_ls_extinction_method 'Zachariasen (1967)' _refine_ls_extinction_coef 'secondary, 0.07(2)' _atom_type_scat_source ; Cromer & Mann (1968) for non-H atoms and from Stewart, Davidson & Simpson (1965) for H atoms ; loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_B_iso_or_equiv O1 0.6945(3) -0.2564 0.6488(2) 3.52(14) O3 0.0095(3) -0.2471(5) 0.5141(2) 2.22(10) O4 0.1429(3) 0.0404(7) 0.7056(2) 2.32(10) O3' 0.5192(4) -0.2587(6) 1.2925(2) 3.47(14) C1 0.5265(5) -0.2486(8) 0.6709(3) 2.19(15) C2 0.3554(5) -0.2455(8) 0.5682(3) 2.35(15) C3 0.1648(5) -0.2908(6) 0.6140(3) 1.72(13) C4 0.1458(5) -0.1690(6) 0.7298(3) 1.75(14) C5 0.3162(5) -0.2040(5) 0.8340(3) 1.57(13) C6 0.4934(5) -0.2390(7) 0.8030(3) 2.08(15) C1' 0.2791(5) -0.1864(6) 0.9657(3) 1.75(14) C2' 0.4227(5) -0.2367(7) 1.0671(3) 2.13(15) C3' 0.3831(5) -0.2220(7) 1.1892(3) 2.18(15) C4' 0.2001(6) -0.1628(6) 1.2109(3) 2.36(17) C5' 0.0598(6) -0.1105(7) 1.1122(3) 2.39(16) C6' 0.0972(5) -0.1195(7) 0.9886(3) 2.16(16) H(03) -0.109 -0.251 0.548 3.0 H(04) 0.052 0.065 0.632 3.0 H(03') 0.637 -0.305 1.268 4.2 H(21) 0.346 -0.117 0.531 3.2 H(22) 0.375 -0.341 0.507 3.2 H(3) 0.163 -0.428 0.635 2.5 H(4) 0.029 -0.207 0.759 2.5 H(6) 0.601 -0.258 0.868 2.9 H(2') 0.547 -0.281 1.053 2.9 H(4') 0.172 -0.160 1.294 3.2 H(5') -0.064 -0.067 1.128 3.2 H(6') 0.000 -0.080 0.921 3.0