Ethylenediaminium Dichromate
Lorenzo-Luis, P. A.; Martín-Zarza, P.; Gili, P.; Arrieta, J. M.; Germain, G.; Dupont, L.; Acta Crystallographica Section C 51 (1995) 1073–1075; doi:10.1107/S0108270194014836

data_2003608
_publ_section_title
;
 Ethylenediaminium Dichromate
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1073
_journal_page_last               1075
_journal_paper_doi               10.1107/S0108270194014836
_journal_volume                  51
_journal_year                    1995
_chemical_compound_source        'see text'
_chemical_formula_sum            'C2 H10 Cr2 N2 O7'
_chemical_formula_weight         278.12
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_type_scat_source           IntTabIV
_cell_angle_alpha                90
_cell_angle_beta                 109.14(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.526(7)
_cell_length_b                   7.801(7)
_cell_length_c                   8.706(11)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293
_cell_measurement_theta_max      25
_cell_measurement_theta_min      10
_cell_volume                     867.8(14)
_diffrn_measurement_device       'Stoe Siemens AED-2'
_diffrn_measurement_method       \q/2\q
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            1898
_diffrn_reflns_theta_max         34.98
_diffrn_standards_decay_%        <3
_diffrn_standards_interval_time  60
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    2.515
_exptl_absorpt_correction_T_max  0.5652
_exptl_absorpt_correction_T_min  0.4526
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            red-orange
_exptl_crystal_density_diffrn    2.129
_exptl_crystal_description       'hexagonal prismatic'
_exptl_crystal_size_max          0.8
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.390
_refine_diff_density_min         -0.450
_refine_ls_extinction_coef       0.064(2)
_refine_ls_extinction_method     'SHELXL93 (Sheldrick, 1993)'
_refine_ls_goodness_of_fit_obs   0.837
_refine_ls_hydrogen_treatment    'H atoms: see text'
_refine_ls_number_parameters     63
_refine_ls_number_reflns         1676
_refine_ls_R_factor_obs          0.0223
_refine_ls_shift/esd_max         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_scheme
;
w = 1/[\s^2^(F~o~^2^) + (0.0536P)^2^ + 1.12P]
where P = (F~o~^2^ + 2F~c~^2^)/3
;
_refine_ls_wR_factor_obs         0.0733
_reflns_number_observed          1676
_reflns_number_total             1898
_reflns_observed_criterion       F~o~>4\s(F~o~)
_cod_data_source_file            sh1107.cif
_cod_data_source_block           sh1107a
_cod_original_cell_volume        867.8(11)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2003608