Infinite, undulating chains of intermolecularly hydrogen bonded (E,E)-2,2-dimethylcyclohexane-1,3-dione dioximes in the solid state. A single crystal X-ray, charge density distribution and spectroscopic study
Marsman, Albert W.; van Walree, Cornelis A.; Havenith, Remco W. A.; Jenneskens, Leonardus W.; Lutz, Martin; Spek, Anthony L.; Lutz, Egbertus T. G.; van der Maas, Joop H.; Journal of the Chemical Society, Perkin Transactions 2  (2000) 501–; doi:10.1039/a908335i

data_7213204
_publ_section_title
;
 Infinite, undulating chains of intermolecularly hydrogen bonded
 (E,E)-2,2-dimethylcyclohexane-1,3-dione dioximes in the solid state. A
 single crystal X-ray, charge density distribution and spectroscopic study
;
_journal_issue                   3
_journal_name_full
'Journal of the Chemical Society, Perkin Transactions 2'
_journal_page_first              501
_journal_paper_doi               10.1039/a908335i
_journal_year                    2000
_chemical_formula_moiety         'C8 H14 N2 O2'
_chemical_formula_sum            'C8 H14 N2 O2'
_chemical_formula_weight         170.21
_chemical_name_systematic
; 

 ? 

;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.0872(2)
_cell_length_b                   11.7970(2)
_cell_length_c                   7.7925(2)
_cell_measurement_temperature    150(2)
_cell_volume                     927.30(3)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection
'COLLECT data collection software, Nonius B.V., 1998.'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 1998)'
_computing_publication_material  'manually editing of SHELXL results'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0404
_diffrn_reflns_av_sigmaI/netI    0.0222
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            8793
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         3.45
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.219
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             368
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.272
_refine_diff_density_min         -0.168
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     80
_refine_ls_number_reflns         1114
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0428
_refine_ls_R_factor_gt           0.0360
_refine_ls_shift/su_max          0.324
_refine_ls_shift/su_mean         0.047
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0525P)^2^+0.2303P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0963
_refine_ls_wR_factor_ref         0.1018
_reflns_number_gt                965
_reflns_number_total             1114
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            a908335isup1.cif
_cod_data_source_block           s1911d
_cod_database_code               7213204