Structural diversity in pyridine and polypyridine adducts of ring slipped manganocene: correlating ligand steric bulk with quantified deviation from ideal hapticity.
Cannella, Anthony F.; Dey, Suman Kr; MacMillan, Samantha N.; Lacy, David C.; Dalton transactions (Cambridge, England : 2003) 47 (2018) 5171–5180; doi:10.1039/C8DT00537K

data_7702182
_publ_section_title
;
 Structural diversity in pyridine and polypyridine adducts of ring slipped
 manganocene: correlating ligand steric bulk with quantified deviation
 from ideal hapticity.
;
_journal_issue                   15
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5171
_journal_page_last               5180
_journal_paper_doi               10.1039/C8DT00537K
_journal_volume                  47
_journal_year                    2018
_chemical_formula_sum            'C20 H20 Mn N2'
_chemical_formula_weight         343.32
_space_group_crystal_system      orthorhombic
_space_group_IT_number           41
_space_group_name_Hall           'A 2 -2ab'
_space_group_name_H-M_alt        'A e a 2'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-02-06 deposited with the CCDC.
2018-03-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.8832(7)
_cell_length_b                   17.6630(19)
_cell_length_c                   12.5197(12)
_cell_measurement_reflns_used    1331
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      24.03
_cell_measurement_theta_min      2.31
_cell_volume                     1743.3(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0319
_diffrn_reflns_av_unetI/netI     0.0464
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5214
_diffrn_reflns_point_group_measured_fraction_full 0.986
_diffrn_reflns_point_group_measured_fraction_max 0.960
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.271
_diffrn_reflns_theta_min         2.306
_exptl_absorpt_coefficient_mu    0.758
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6610
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2014/5'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_description       Plate
_exptl_crystal_F_000             716
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.090
_refine_diff_density_max         0.288
_refine_diff_density_min         -0.167
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details
; 
 Flack x determined using 621 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.05(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     105
_refine_ls_number_reflns         2092
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0511
_refine_ls_R_factor_gt           0.0378
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0416P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0869
_refine_ls_wR_factor_ref         0.0925
_reflns_Friedel_coverage         0.833
_reflns_Friedel_fraction_full    0.970
_reflns_Friedel_fraction_max     0.915
_reflns_number_gt                1631
_reflns_number_total             2092
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt00537k2.cif
_cod_data_source_block           lacy9_b
_cod_original_sg_symbol_Hall     'A 2 -2ac'
_cod_original_sg_symbol_H-M      'A b a 2'
_cod_database_code               7702182
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.794
_shelx_estimated_absorpt_t_max   0.935
_shelx_res_checksum              25730