The Anisotropic Compression of the Crystal Structure of 3-Aza-bicyclo(3.3.1)nonane-2,4-dione to 7.1 GPa
Wood, Peter A.; Haynes, Delia A.; Lennie, Alistair R.; Motherwell, W. D. Samuel; Parsons, Simon; Pidcock, Elna; Warren, John E.; Crystal Growth & Design 8 (2008) 549–; doi:10.1021/cg0705815

data_4503136
_publ_section_title
;
 The Anisotropic Compression of the Crystal Structure of
 3-Aza-bicyclo(3.3.1)nonane-2,4-dione to 7.1 GPa
;
_journal_issue                   2
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              549
_journal_paper_doi               10.1021/cg0705815
_journal_volume                  8
_journal_year                    2008
_chemical_compound_source        'Sigma Aldrich'
_chemical_formula_moiety         'C8 H11 N1 O2'
_chemical_formula_sum            'C8 H11 N O2'
_chemical_formula_weight         153.18
_chemical_name_systematic        3-aza-bicyclo(3.3.1)nonane-2,4-dione
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             06-08-08
_audit_creation_method           CRYSTALS_ver_12.84
_cell_angle_alpha                90
_cell_angle_beta                 97.03(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.938(7)
_cell_length_b                   9.754(3)
_cell_length_c                   7.481(2)
_cell_measurement_reflns_used    369
_cell_measurement_temperature    298
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2
_cell_volume                     574.9(6)
_computing_cell_refinement       'SAINT (Siemens ,1995)'
_computing_data_collection       'SMART (Siemens, 1993)'
_computing_data_reduction        'SAINT (Siemens ,1995)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'Model taken from ambient pressure structure'
_diffrn_ambient_pressure         7100000
_diffrn_ambient_temperature      298
_diffrn_measured_fraction_theta_full 0.377
_diffrn_measured_fraction_theta_max 0.282
_diffrn_measurement_device_type  'Bruker-Nonius ApexII CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.8460
_diffrn_reflns_av_R_equivalents  0.107
_diffrn_reflns_limit_h_max       2
_diffrn_reflns_limit_h_min       -2
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            916
_diffrn_reflns_theta_full        17.200
_diffrn_reflns_theta_max         21.772
_diffrn_reflns_theta_min         3.449
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.128
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.27
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS version 2006/1'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.770
_exptl_crystal_description       block
_exptl_crystal_F_000             328
_exptl_crystal_recrystallization_method
'Recrystallised by application of pressure from methanol/ethanol solution'
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.22
_refine_diff_density_min         -0.25
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.8534
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     45
_refine_ls_number_reflns         191
_refine_ls_number_restraints     29
_refine_ls_R_factor_all          0.0878
_refine_ls_R_factor_gt           0.0761
_refine_ls_shift/su_max          0.000020
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 14.2 18.4 8.24 2.81 0.765E-01 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.2057
_refine_ls_wR_factor_gt          0.1898
_refine_ls_wR_factor_ref         0.2057
_reflns_limit_h_max              2
_reflns_limit_h_min              -2
_reflns_limit_k_max              10
_reflns_limit_k_min              0
_reflns_limit_l_max              7
_reflns_limit_l_min              0
_reflns_number_gt                160
_reflns_number_total             209
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   0.00
_oxford_diffrn_Wilson_scale      0.00
_oxford_refine_ls_scale          0.530(10)
_cod_data_source_file            cg0705815-file001.cif
_cod_data_source_block           71kbar
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_original_formula_sum        'C8 H11 N1 O2'
_cod_database_code               4503136