Probing the structural and electronic response of Magnus green salt compounds [Pt(NH<sub>2</sub>R)<sub>4</sub>][PtCl<sub>4</sub>] (R = H, CH<sub>3</sub>) to pressure.
Richardson, Jonathan G.; Benjamin, Helen; Moggach, Stephen A.; Warren, Lisette R.; Warren, Mark R.; Allan, David R.; Saunders, Lucy K.; Morrison, Carole A.; Robertson, Neil; Physical chemistry chemical physics : PCCP 22 (2020) 17668–17676; doi:10.1039/d0cp03280h

data_7240939
_publ_section_title
;
 Probing the structural and electronic response of Magnus green salt
 compounds [Pt(NH<sub>2</sub>R)<sub>4</sub>][PtCl<sub>4</sub>] (R = H,
 CH<sub>3</sub>) to pressure.
;
_journal_issue                   31
_journal_name_full               'Physical chemistry chemical physics : PCCP'
_journal_page_first              17668
_journal_page_last               17676
_journal_paper_doi               10.1039/d0cp03280h
_journal_volume                  22
_journal_year                    2020
_chemical_formula_moiety         'Cl4 Pt, H12 N4 Pt'
_chemical_formula_sum            'Cl4 H12 N4 Pt2'
_chemical_formula_weight         600.11
_space_group_IT_number           128
_space_group_name_Hall           '-P 4 2n'
_space_group_name_H-M_alt        'P 4/m n c'
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-P 4 2n'
_symmetry_space_group_name_H-M   'P 4/m n c'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_audit_creation_date             2020-06-12
_audit_creation_method           CRYSTALS_ver_14.61_build_6999
_audit_update_record
;
2020-06-15 deposited with the CCDC.	2020-07-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.9435(5)
_cell_length_b                   8.9435(5)
_cell_length_c                   6.4253(7)
_cell_measurement_reflns_used    653
_cell_measurement_temperature    293
_cell_measurement_theta_max      17
_cell_measurement_theta_min      3
_cell_volume                     513.94(7)
_computing_cell_refinement       'USER DEFINED CELL REFINEMENT'
_computing_data_collection       'USER DEFINED DATA COLLECTION'
_computing_data_reduction
; 
 CrysAlisPro (Rigaku Oxford Diffraction, 2017) 
;
_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    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_pressure         375000
_diffrn_ambient_temperature      293
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.869
_diffrn_measured_fraction_theta_max 0.844
_diffrn_measurement_device       'abstract diffractometer'
_diffrn_measurement_device_type
'dectris-CrysAlisPro-abstract goniometer imported dectris images'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  synchrotron
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.48590
_diffrn_reflns_av_R_equivalents  0.037
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_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            1118
_diffrn_reflns_theta_full        13.558
_diffrn_reflns_theta_max         16.534
_diffrn_reflns_theta_min         2.669
_diffrn_source                   synchrotron
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    10.430
_exptl_absorpt_correction_T_max  0.75
_exptl_absorpt_correction_T_min  0.62
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    3.878
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             528
_exptl_crystal_size_max          0.100
_exptl_crystal_size_mid          0.010
_exptl_crystal_size_min          0.010
_refine_diff_density_max         1.67
_refine_diff_density_min         -1.90
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.9719
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     18
_refine_ls_number_reflns         205
_refine_ls_number_restraints     2
_refine_ls_R_factor_all          0.0403
_refine_ls_R_factor_gt           0.0394
_refine_ls_shift/su_max          0.0013233
_refine_ls_shift/su_mean         0.0000822
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method= Modified Sheldrick 
 w=1/[\s^2^(F^2^) + ( 0.05P)^2^ + 5.24P] 
 ,where P=(max(Fo^2^,0) + 2Fc^2^)/3 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0976
_refine_ls_wR_factor_gt          0.0968
_refine_ls_wR_factor_ref         0.0867
_reflns_limit_h_max              7
_reflns_limit_h_min              0
_reflns_limit_k_max              10
_reflns_limit_k_min              0
_reflns_limit_l_max              7
_reflns_limit_l_min              0
_reflns_number_gt                185
_reflns_number_total             207
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   0.00
_oxford_diffrn_Wilson_scale      0.00
_oxford_refine_ls_r_factor_ref   0.0342
_oxford_refine_ls_scale          0.2708(11)
_oxford_reflns_number_all        206
_oxford_structure_analysis_title 'final_38deg in P4/mnc'
_cod_data_source_file            d0cp03280h2.cif
_cod_data_source_block           MagNH3_037GPa
_cod_depositor_comments
'Adding full bibliography for 7240937--7240954.cif.'
_cod_original_cell_volume        513.93(8)
_cod_original_sg_symbol_Hall     '-P 4 2n '
_cod_original_sg_symbol_H-M      'P 4/m n c '
_cod_database_code               7240939
_oxford_refine_reflns_threshold_expression_ref I>-3.0\s(I)