Structural phase transition, electronic and optical properties of the 2D hybrid organic-inorganic perovskite-type 2C6MnCl4
El Mustafa Ouaaka; Mustapha Aazza; Thierry Maris; El Mostafa Khechoubi; Physics Letters A 575 (2026) 131409–; doi:10.1016/j.physleta.2026.131409

data_1577061
_publ_contact_author_id_orcid    0000-0001-9731-4046
_publ_section_title
;
 Structural phase transition, electronic and optical properties of the 2D
 hybrid organic-inorganic perovskite-type 2C6MnCl4
;
_journal_name_full               'Physics Letters A'
_journal_page_first              131409
_journal_paper_doi               10.1016/j.physleta.2026.131409
_journal_volume                  575
_journal_year                    2026
_chemical_formula_moiety         'Cl4 Mn, C6 H18 N2'
_chemical_formula_sum            'C6 H18 Cl4 Mn N2'
_chemical_formula_weight         314.96
_chemical_name_common            '1,6-hexanediammonium tetrachlorocuprate'
_chemical_name_systematic
'catena-(hexane-1,6-diammonium bis(\m-chloro)-dichloro-manganese)'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_contact_author_email      thierry.maris@umontreal.ca
_audit_contact_author_name       'Thierry Maris'
_audit_contact_author_phone      '+1 514 343 6111 3937'
_audit_creation_date             2025-02-18
_cell_angle_alpha                90
_cell_angle_beta                 93.7109(16)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   13.3204(5)
_cell_length_b                   7.3021(3)
_cell_length_c                   7.1745(2)
_cell_measurement_reflns_used    5570
_cell_measurement_temperature    290
_cell_measurement_theta_max      56.919
_cell_measurement_theta_min      5.271
_cell_volume                     696.38(4)
_computing_cell_refinement
;
SAINT (2013) V8.41; Integration Software for Single Crystal Data.
Bruker AXS Inc., Madison, WI 53719-1173.
;
_computing_data_collection
;
APEX 4 (2022) Bruker AXS Inc., Madison, WI 53719-1173.
;
_computing_data_reduction
;
SAINT (2013) V8.41; Integration Software for Single Crystal Data.
Bruker AXS Inc., Madison, WI 53719-1173.
;
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS (G. Sheldrick)'
_diffrn_ambient_temperature      290
_diffrn_detector                 'CMOS Area detector'
_diffrn_detector_area_resol_mean 10.42
_diffrn_detector_type            'Bruker CMOS Photon III '
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device       'k-geometry diffractometer'
_diffrn_measurement_device_type  'Bruker Venture Metaljet'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_collimation    'Focusing mirrors'
_diffrn_radiation_monochromator  'Helios MX Mirror Optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Ga K\a'
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.0372
_diffrn_reflns_av_unetI/netI     0.0468
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            5381
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         56.901
_diffrn_reflns_theta_min         5.792
_diffrn_source                   'Metal Jet'
_diffrn_source_current           3.57
_diffrn_source_power             0.2489
_diffrn_source_target            Ga
_diffrn_source_type              'Gallium Liquid Metal Jet Source'
_diffrn_source_voltage           69.71
_exptl_absorpt_coefficient_mu    9.830
_exptl_absorpt_correction_T_max  0.2042
_exptl_absorpt_correction_T_min  0.0759
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1428 before and 0.0746 after correction.
The Ratio of minimum to maximum transmission is 0.3717.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear light pink'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    pink
_exptl_crystal_density_diffrn    1.502
_exptl_crystal_description       plate
_exptl_crystal_F_000             322
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.319
_refine_diff_density_min         -0.276
_refine_diff_density_rms         0.077
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.118
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     62
_refine_ls_number_reflns         1398
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.118
_refine_ls_R_factor_all          0.0303
_refine_ls_R_factor_gt           0.0301
_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^)+(0.0493P)^2^+0.2922P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0923
_refine_ls_wR_factor_ref         0.0928
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                1383
_reflns_number_total             1398
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            2c6mn290.cif
_cod_data_source_block           2c6mn290
_cod_database_code               1577061
_cod_database_fobs_code 1577061