#------------------------------------------------------------------------------ #$Date: 2016-02-19 22:18:51 +0000 (Fri, 19 Feb 2016) $ #$Revision: 176760 $ #$URL: svn://www.crystallography.net/cod/cif/2/01/03/2010343.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided by IUCr Journals, http://journals.iucr.org/. # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_2010343 loop_ _publ_author_name 'De Ridder, Dirk J. A.' 'Fraanje, Jan' 'Goubitz, Kees' 'Schenk, Henk' _publ_section_title ; Crystal studies of musk compounds. XIII. Molecular structures of 6-formyl-1,1,2,4,4,7-hexamethyltetralin (I) and 6-formyl-1,1,4,4,5,7-hexamethyltetralin (2) ; _journal_issue 12 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first 1962 _journal_page_last 1966 _journal_paper_doi 10.1107/S0108270194002647 _journal_volume 50 _journal_year 1994 _chemical_formula_moiety 'C17 H24 O' _chemical_formula_sum 'C17 H24 O' _chemical_formula_weight 244.38 _chemical_name_systematic 6-formyl-1,1,2,4,4,7-hexamethyltetralin _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_space_group_name_Hall '-P 2yn' _symmetry_space_group_name_H-M 'P 1 21/n 1' _audit_creation_method from_xtal_archive_file_using_CIFIO _cell_angle_alpha 90.00000 _cell_angle_beta 90.63(3) _cell_angle_gamma 90.00000 _cell_formula_units_Z 4 _cell_length_a 8.616(3) _cell_length_b 10.435(2) _cell_length_c 16.162(4) _cell_measurement_reflns_used 23 _cell_measurement_temperature 245.0(10) _cell_measurement_theta_max 33.1 _cell_measurement_theta_min 25.1 _cell_volume 1453.0(7) _computing_cell_refinement 'CELCON comparable to Xtal LATCON' _computing_data_collection 'CAD-4 software (Enraf-Nonius, 1989)' _computing_data_reduction ; Xtal SORTRF (Hall, Spadaccini & Stewart, 1990) and Xtal ADDREF (Davenport & Hall, 1990) ; _computing_molecular_graphics 'PEANUT (Hummel, Hauser & B\"urgi, 1990)' _computing_publication_material ; Xtal BONDLA (Dreissig, Doherty, Stewart & Hall, 1990) and Xtal CIFIO (Hall, 1990) ; _computing_structure_refinement 'Xtal CRYLSQ (Olthof-Hazekamp, 1990)' _computing_structure_solution 'Xtal SIMPEL (Schenk & Hall, 1990)' _diffrn_ambient_temperature 245 _diffrn_measurement_device 'Enraf-Nonius CAD-4 diffractometer' _diffrn_measurement_method \q/2\q _diffrn_radiation_monochromator graphite _diffrn_radiation_source xray_tube _diffrn_radiation_type 'Cu K\a' _diffrn_radiation_wavelength 1.5418 _diffrn_reflns_av_R_equivalents 'Not available' _diffrn_reflns_limit_h_max 10 _diffrn_reflns_limit_h_min -10 _diffrn_reflns_limit_k_max 12 _diffrn_reflns_limit_k_min 0 _diffrn_reflns_limit_l_max 0 _diffrn_reflns_limit_l_min -19 _diffrn_reflns_number 2680 _diffrn_reflns_reduction_process perpendicular_monochr_Lp _diffrn_reflns_theta_max 64.87 _diffrn_reflns_theta_min 5.05 _diffrn_standards_decay_% 0 _diffrn_standards_interval_time 60 _diffrn_standards_number 2 _exptl_absorpt_coefficient_mu .479 _exptl_absorpt_correction_T_max 1.61 _exptl_absorpt_correction_T_min .66 _exptl_absorpt_correction_type empirical _exptl_absorpt_process_details 'DIFABS (Walker & Stuart, 1983)' _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.115 _exptl_crystal_density_meas ? _exptl_crystal_description 'block shaped crystal' _exptl_crystal_F_000 536 _exptl_crystal_size_max .60 _exptl_crystal_size_mid .35 _exptl_crystal_size_min .15 _refine_diff_density_max .413 _refine_diff_density_min -.217 _refine_ls_abs_structure_details none _refine_ls_abs_structure_Flack 0 _refine_ls_extinction_coef 8E-7(11) _refine_ls_extinction_method 'Zachariasen (1967)' _refine_ls_goodness_of_fit_all .221 _refine_ls_goodness_of_fit_obs .221 _refine_ls_hydrogen_treatment ; H atoms refined, restrained at 1.09 \%A to their carrier atom. U~eq~ of the H atom attached to C16 was kept fixed at 0.06 \%A^2^ ; _refine_ls_matrix_type full _refine_ls_number_constraints 0 _refine_ls_number_parameters 271 _refine_ls_number_reflns 1520 _refine_ls_number_restraints 25 _refine_ls_R_factor_all .064 _refine_ls_R_factor_obs .064 _refine_ls_shift/esd_max .252 _refine_ls_shift/esd_mean .018 _refine_ls_structure_factor_coef F _refine_ls_weighting_details 'w=1/(6.092 + F~obs~ + 0.0072 F^2^~obs~)' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_all .084 _refine_ls_wR_factor_obs .084 _reflns_number_observed 1520 _reflns_number_total 2463 _reflns_observed_criterion refl_observed_if_Inet_>_2.5_sigma(Inet) _cod_data_source_file sh1094.cif _cod_data_source_block 1 _cod_depositor_comments ; Site occupancies and disorder asseblies were reconstructed from the authors' comments that were (semantically incorrectly) included into coordinate list: Population parameter of O1A = 0.57 . . Population parameter of O1B = 0.43 . . The comments are present in the original paper supplementary CIF file, sh1094.cif (http://scripts.iucr.org/cgi-bin/sendcif?sh1094sup1) Saulius Gra\