Isolation of singlet carbene derived 2-arsa-1,3-butadiene radical cations and dications.
Sharma, Mahendra K.; Blomeyer, Sebastian; Neumann, Beate; Stammler, Hans-Georg; Hinz, Alexander; van Gastel, Maurice; Ghadwal, Rajendra S.; Chemical communications (Cambridge, England) 56 (2020) 3575–3578; doi:10.1039/d0cc00624f

data_7126047
_publ_section_title
;
 Isolation of singlet carbene derived 2-arsa-1,3-butadiene radical cations
 and dications.
;
_journal_issue                   24
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              3575
_journal_page_last               3578
_journal_paper_doi               10.1039/d0cc00624f
_journal_volume                  56
_journal_year                    2020
_chemical_formula_moiety         'C57 H76 As N3'
_chemical_formula_sum            'C57 H76 As N3'
_chemical_formula_weight         878.12
_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     dual
_audit_creation_date             2019-09-24
_audit_creation_method
;
Olex2 1.3-ac4
(compiled 2019.04.23 svn.r3594 for Rigaku Oxford Diffraction, GUI svn.r5739)
;
_audit_update_record
;
2019-11-19 deposited with the CCDC.	2020-02-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 101.668(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.8381(6)
_cell_length_b                   11.9051(4)
_cell_length_c                   22.8999(7)
_cell_measurement_reflns_used    7703
_cell_measurement_temperature    100.00(11)
_cell_measurement_theta_max      30.3870
_cell_measurement_theta_min      1.9270
_cell_volume                     5029.6(3)
_computing_cell_refinement       'CrysAlisPro 1.171.40.58a (Rigaku OD, 2019)'
_computing_data_collection       'CrysAlisPro 1.171.40.58a (Rigaku OD, 2019)'
_computing_data_reduction        'CrysAlisPro 1.171.40.58a (Rigaku OD, 2019)'
_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 (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100.00(11)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.0951
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.898
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -92.00 -31.00   1.00  111.00    --  -23.50 -57.00-120.00   61
  2  \w    -43.00  44.00   1.00  111.00    --   26.03 -57.00  90.00   87
  3  \w    -42.00  48.00   1.00  111.00    --   26.03 -38.00 -30.00   90
  4  \w     -3.00  41.00   1.00  111.00    --   26.03  77.00-150.00   44
  5  \w      6.00  70.00   1.00  111.00    --   26.03  57.00 -30.00   64
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Single source at offset/far, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0006576000
_diffrn_orient_matrix_UB_12      0.0427012000
_diffrn_orient_matrix_UB_13      -0.0214845000
_diffrn_orient_matrix_UB_21      0.0375973000
_diffrn_orient_matrix_UB_22      -0.0093512000
_diffrn_orient_matrix_UB_23      0.0020033000
_diffrn_orient_matrix_UB_31      -0.0079681000
_diffrn_orient_matrix_UB_32      -0.0404881000
_diffrn_orient_matrix_UB_33      -0.0231279000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0567
_diffrn_reflns_av_unetI/netI     0.0866
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.898
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            41417
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.898
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         32.156
_diffrn_reflns_theta_min         1.816
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.714
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.858
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.58a (Rigaku Oxford Diffraction, 2019)
Numerical absorption correction based on gaussian integration over
			a multifaceted crystal model
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear orange'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.160
_exptl_crystal_description       plate
_exptl_crystal_F_000             1888
_exptl_crystal_size_max          0.229
_exptl_crystal_size_mid          0.089
_exptl_crystal_size_min          0.026
_refine_diff_density_max         0.445
_refine_diff_density_min         -0.522
_refine_diff_density_rms         0.080
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     564
_refine_ls_number_reflns         15892
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.1008
_refine_ls_R_factor_gt           0.0554
_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^)+(0.0372P)^2^+2.8987P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1071
_refine_ls_wR_factor_ref         0.1247
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10560
_reflns_number_total             15892
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0cc00624f2.cif
_cod_data_source_block           compound2b
_cod_depositor_comments
'Adding full bibliography for 7126045--7126050.cif.'
_cod_database_code               7126047
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'C57 H76 As N3'
_diffrn_oxdiff_digest_frames
;
01d2889a52d5cf42fa60ed8b8eb14f6e1100027e07b
;
_diffrn_oxdiff_digest_hkl
;
01a98ea900ea86ff40297b8ca8ea476fcdc30d
;
_reflns_odcompleteness_completeness 99.86
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     30.01
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C10(H10), C13(H13), C22(H22), C25(H25), C52(H52), C55(H55)
2.b Secondary CH2 refined with riding coordinates:
 C37(H37A,H37B), C39(H39A,H39B), C40(H40A,H40B), C41(H41A,H41B), C42(H42A,
 H42B), C43(H43A,H43B)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C6(H6), C7(H7), C8(H8), C18(H18), C19(H19), C20(H20),
 C30(H30), C31(H31), C32(H32), C33(H33), C34(H34), C48(H48), C49(H49), C50(H50)
2.d Idealised Me refined as rotating group:
 C11(H11A,H11B,H11C), C12(H12A,H12B,H12C), C14(H14A,H14B,H14C), C15(H15A,H15B,
 H15C), C23(H23A,H23B,H23C), C24(H24A,H24B,H24C), C26(H26A,H26B,H26C), C27(H27A,
 H27B,H27C), C44(H44A,H44B,H44C), C45(H45A,H45B,H45C), C53(H53A,H53B,H53C),
 C54(H54A,H54B,H54C), C56(H56A,H56B,H56C), C57(H57A,H57B,H57C)
;
_shelx_res_checksum              88114
_olex2_date_sample_data_collection 2019-09-23
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.104
_oxdiff_exptl_absorpt_empirical_full_min 0.914