Synthesis and molecular structures of phenylamides of magnesium, calcium, strontium, and barium–from molecular to polymeric structures.
Gärtner, Martin; Görls, Helmar; Westerhausen, Matthias; Inorganic chemistry 46 (2007) 7678–7683; doi:10.1021/ic7010524

data_4338859
_publ_section_title
;
 Synthesis and molecular structures of phenylamides of magnesium, calcium,
 strontium, and barium--from molecular to polymeric structures.
;
_journal_issue                   18
_journal_name_full               'Inorganic chemistry'
_journal_page_first              7678
_journal_page_last               7683
_journal_paper_doi               10.1021/ic7010524
_journal_volume                  46
_journal_year                    2007
_chemical_formula_sum            'C20 H28 N2 O2 Sr'
_chemical_formula_weight         416.06
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.46(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            12
_cell_length_a                   10.935(2)
_cell_length_b                   23.084(5)
_cell_length_c                   25.096(5)
_cell_measurement_temperature    183(2)
_cell_volume                     6323(2)
_computing_cell_refinement       DENZO
_computing_data_collection       COLLECT
_computing_data_reduction        DENZO
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measured_fraction_theta_full 0.943
_diffrn_measured_fraction_theta_max 0.943
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi- + omega-scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0625
_diffrn_reflns_av_sigmaI/netI    0.0734
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            33784
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         2.98
_exptl_absorpt_coefficient_mu    2.572
_exptl_absorpt_correction_T_max  0.9105
_exptl_absorpt_correction_T_min  0.8594
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
[c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.311
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2592
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.553
_refine_diff_density_min         -0.561
_refine_diff_density_rms         0.104
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     694
_refine_ls_number_reflns         13641
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0897
_refine_ls_R_factor_gt           0.0518
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0738P)^2^+3.2397P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1257
_refine_ls_wR_factor_ref         0.1435
_reflns_number_gt                9498
_reflns_number_total             13641
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic7010524-file002.cif
_cod_data_source_block           FO3083
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4338859