A Tetranuclear Calcium Hydride Cluster with a Highly Symmetric [Ca4H6]2+ Core
Okuda, Jun; Schuhknecht, Danny; Spaniol, Thomas Paul; Laurent, Maron; Douair, Iskander; Chemical Communications  (2019) –; doi:10.1039/C9CC08540H

data_7124521
_publ_section_title
;
 A Tetranuclear Calcium Hydride Cluster with a Highly Symmetric [Ca4H6]2+
 Core
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC08540H
_journal_year                    2019
_chemical_formula_moiety         'C32 H36 B, C9 H22 N3'
_chemical_formula_sum            'C41 H58 B N3'
_chemical_formula_weight         603.71
_chemical_properties_physical    Air-sensitive,Moisture-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   difmap
_audit_creation_date             2019-10-28
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-10-28 deposited with the CCDC.	2019-11-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 102.562(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.0798(5)
_cell_length_b                   14.2813(8)
_cell_length_c                   19.7342(8)
_cell_measurement_reflns_used    14533
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.77
_cell_measurement_theta_min      2.14
_cell_volume                     3598.0(3)
_computing_cell_refinement
;
X-Area Recipe 1.33.0.0 (STOE, 2015)
;
_computing_data_collection
;
X-Area Pilatus3_SV 1.31.131.0 (STOE, 2017)
;
_computing_data_reduction
;
X-Area Integrate 1.71.0.0 (STOE, 2016)
X-Area LANA 1.71.4.0 (STOE, 2017)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100
_diffrn_detector                 'Hybrid Pixel Counting Detector'
_diffrn_detector_area_resol_mean 5.81
_diffrn_detector_type            'Dectris Pilatus 200K'
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.860
_diffrn_measurement_details
;
 629 frames, detector distance = 60 mm
;
_diffrn_measurement_device       '4-circle diffractometer'
_diffrn_measurement_device_type  'STOE STADIVARI'
_diffrn_measurement_method       'rotation method, \w scans'
_diffrn_radiation_collimation    '0.6 mm diameter'
_diffrn_radiation_monochromator  'Graded multilayer mirror'
_diffrn_radiation_polarisn_norm  270
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0390
_diffrn_reflns_av_unetI/netI     0.1030
_diffrn_reflns_Laue_measured_fraction_full 0.976
_diffrn_reflns_Laue_measured_fraction_max 0.860
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            18176
_diffrn_reflns_point_group_measured_fraction_full 0.976
_diffrn_reflns_point_group_measured_fraction_max 0.860
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.629
_diffrn_reflns_theta_min         2.140
_diffrn_source                   'Genix Mo'
_diffrn_source_current           1.000
_diffrn_source_power             0.050
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    0.064
_exptl_absorpt_correction_T_max  0.9798
_exptl_absorpt_correction_T_min  0.3241
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
STOE X-Red32, absorption correction by Gaussian integration, analogous to
P. Coppens, "The Evaluation of Absorption and Extinction in Single-Crystal
Structure Analysis", published in: F. R. Ahmed (Editor), "Crystallographic
Computing", Munksgaard, Copenhagen (1970), 255 - 270.
Afterwards scaling of reflection intensities was performed within STOE LANA.
J. Koziskova, F. Hahn, J. Richter, J. Kozisek, "Comparison of different
absorption corrections on the model structure of tetrakis(\m~2~-acetato)-
diaqua-di-copper(II)", Acta Chimica Slovaca, vol. 9, no. 2, 2016, pp. 136 - 140.
Finally a spherical absorption correction was done within STOE LANA.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.114
_exptl_crystal_description       block
_exptl_crystal_F_000             1320
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: thf, pentane'
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.268
_refine_diff_density_min         -0.218
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_matrix_type           full
_refine_ls_number_parameters     584
_refine_ls_number_reflns         9555
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.1248
_refine_ls_R_factor_gt           0.0733
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0592P)^2^+2.4403P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1726
_refine_ls_wR_factor_ref         0.1849
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5565
_reflns_number_total             9555
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc08540h2.cif
_cod_data_source_block           1
_cod_database_code               7124521
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.987
_shelx_estimated_absorpt_t_min   0.984
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Others
 Sof(H2)=1-FVAR(1)
 Sof(H1)=FVAR(1)
;
_olex2_submission_special_instructions 'No special instructions were received'