#------------------------------------------------------------------------------
#$Date: 2021-12-29 01:47:46 +0200 (Wed, 29 Dec 2021) $
#$Revision: 271644 $
#$URL: file:///home/coder/svn-repositories/cod/cif/7/70/91/7709193.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_7709193
loop_
_publ_author_name
'Amiri Rudbari, Hadi'
'Saadati, Arezoo'
'Ariaeefar, Mahnaz'
'Blacque, Olivier'
'Correia, Isabel'
'Islam, Mohammad Khairul'
'Woschko, Dennis'
'Janiak, Christoph'
'Enamullah, Mohammed'
_publ_section_title
;
 Pseudotetrahedral Zn(II)-(R or S)-dihalogen-salicylaldiminato complexes
 with Λ- or Δ-chirality induction at-metal
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D1DT04220C
_journal_year                    2022
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C30 H24 Br2 Cl2 N2 O2 Zn'
_chemical_formula_sum            'C30 H24 Br2 Cl2 N2 O2 Zn'
_chemical_formula_weight         740.60
_space_group_crystal_system      monoclinic
_space_group_IT_number           5
_space_group_name_Hall           'I 2y'
_space_group_name_H-M_alt        'I 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-11-22
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2020-05-02 deposited with the CCDC.	2021-12-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.216(3)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.2247(2)
_cell_length_b                   10.8940(3)
_cell_length_c                   12.9214(3)
_cell_measurement_reflns_used    6125
_cell_measurement_temperature    160(1)
_cell_measurement_theta_max      76.1140
_cell_measurement_theta_min      4.8590
_cell_volume                     1374.80(6)
_computing_cell_refinement       'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_data_collection       'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_data_reduction        'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015b)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015a)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      160(1)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 10.3801
_diffrn_detector_type            Atlas
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  tₑₓₚ   ω     θ     κ     φ   Frames
#--------------------------------------------------------------------------
  1  ω   -114.00 -13.00   1.00    1.00    --  -41.44 -57.00   0.00  101
  2  ω    -82.00  39.00   1.00    1.00    --  -41.44  19.00 -30.00  121
  3  ω    -70.00  32.00   1.00    1.00    --  -41.44  57.00-180.00  102
  4  ω     23.00  97.00   1.00    1.00    --   41.44-125.00 -60.00   74
  5  ω     23.00  97.00   1.00    1.00    --   41.44-125.00  60.00   74
  6  ω     17.00 116.00   1.00    1.00    --   41.44  37.00  30.00   99
  7  ω      1.00  82.00   1.00    1.00    --   41.44 -99.00 -30.00   81
  8  ω    100.00 178.00   1.00    3.00    --  112.00 111.00  60.00   78
  9  ω     39.00 138.00   1.00    3.00    --  112.00 -45.00 120.00   99
 10  ω     59.00 178.00   1.00    3.00    --  112.00  15.00  60.00  119
 11  ω     29.00 110.00   1.00    3.00    --  112.00 -94.00 -30.00   81
 12  ω     59.00 178.00   1.00    3.00    --  112.00  15.00 -60.00  119
 13  ω     36.00 113.00   1.00    3.00    --  112.00-111.00 -60.00   77
 14  ω     86.00 178.00   1.00    3.00    --  112.00  45.00-150.00   92
 15  ω     86.00 178.00   1.00    3.00    --  112.00  45.00  90.00   92
 16  ω     29.00 110.00   1.00    3.00    --  112.00 -94.00-150.00   81
 17  ω     84.00 178.00   1.00    3.00    --  112.00  30.00 -30.00   94
 18  ω     79.00 178.00   1.00    3.00    --  112.00  77.00   0.00   99
 19  ω     39.00 138.00   1.00    3.00    --  112.00 -45.00  30.00   99
 20  ω     83.00 178.00   1.00    3.00    --  112.00  61.00  60.00   95
 21  ω     36.00 113.00   1.00    3.00    --  112.00-111.00-150.00   77
 22  ω     36.00 113.00   1.00    3.00    --  112.00-111.00 -90.00   77
 23  ω     84.00 178.00   1.00    3.00    --  112.00  30.00 150.00   94
 24  ω     79.00 178.00   1.00    3.00    --  112.00  77.00 -30.00   99
 25  ω     86.00 178.00   1.00    3.00    --  112.00  45.00  60.00   92
 26  ω     84.00 178.00   1.00    3.00    --  112.00  30.00  60.00   94
 27  ω     36.00 140.00   1.00    3.00    --  112.00 -30.00 -90.00  104
 28  ω     79.00 153.00   1.00    3.00    --  112.00  77.00  30.00   74
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, Atlas'
_diffrn_measurement_method       'ω scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.1161669000
_diffrn_orient_matrix_UB_12      -0.0525164000
_diffrn_orient_matrix_UB_13      -0.0402140000
_diffrn_orient_matrix_UB_21      0.0341028000
_diffrn_orient_matrix_UB_22      -0.0937495000
_diffrn_orient_matrix_UB_23      0.0935349000
_diffrn_orient_matrix_UB_31      -0.1011876000
_diffrn_orient_matrix_UB_32      -0.0917049000
_diffrn_orient_matrix_UB_33      -0.0723943000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0154
_diffrn_reflns_av_unetI/netI     0.0155
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8416
_diffrn_reflns_point_group_measured_fraction_full 0.990
_diffrn_reflns_point_group_measured_fraction_max 0.982
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         74.427
_diffrn_reflns_theta_min         4.872
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    6.697
_exptl_absorpt_correction_T_max  0.821
_exptl_absorpt_correction_T_min  0.452
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.53 (Rigaku Oxford Diffraction, 2019)
Analytical numeric absorption correction using a multifaceted crystal
model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.789
_exptl_crystal_description       plate
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.190
_refine_diff_density_min         -0.505
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details
;
 Flack x determined using 1258 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.007(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     178
_refine_ls_number_reflns         2762
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0224
_refine_ls_R_factor_gt           0.0222
_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/[σ²(Fo²)+(0.0409P)²+0.9935P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0587
_refine_ls_wR_factor_ref         0.0589
_reflns_Friedel_coverage         0.869
_reflns_Friedel_fraction_full    0.979
_reflns_Friedel_fraction_max     0.965
_reflns_number_gt                2732
_reflns_number_total             2762
_reflns_threshold_expression     'I > 2σ(I)'
_cod_data_source_file            d1dt04220c2.cif
_cod_data_source_block           hadi2011
_cod_database_code               7709193
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_usercomment     'sample S'
_shelx_space_group_comment
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;
_shelx_estimated_absorpt_t_max   0.824
_shelx_estimated_absorpt_t_min   0.348
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C8(H8)
2.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C5(H5), C7(H7), C10(H10), C11(H11), C12(H12), C13(H13), C14(H14)
2.c Idealised Me refined as rotating group:
 C15(H15A,H15B,H15C)
;
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, y, -z'
'x+1/2, y+1/2, z+1/2'
'-x+1/2, y+1/2, -z+1/2'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
_atom_site_refinement_flags_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
Br1 Br 0.44569(3) 0.22714(4) 0.82837(3) 0.02831(11) Uani 1 1 d . . . . .
C1 C 0.6037(4) 0.3756(3) 0.7297(3) 0.0230(7) Uani 1 1 d . . . . .
C2 C 0.5846(4) 0.3439(4) 0.8308(3) 0.0242(7) Uani 1 1 d . . . . .
C3 C 0.6534(4) 0.3995(4) 0.9274(3) 0.0281(7) Uani 1 1 d . . . . .
H3 H 0.637233 0.374623 0.992994 0.034 Uiso 1 1 calc R . . . .
C4 C 0.7468(4) 0.4923(4) 0.9275(3) 0.0283(7) Uani 1 1 d . . . . .
C5 C 0.7724(4) 0.5271(4) 0.8327(3) 0.0266(7) Uani 1 1 d . . . . .
H5 H 0.837116 0.590008 0.833724 0.032 Uiso 1 1 calc R . . . .
C6 C 0.7023(4) 0.4693(3) 0.7340(3) 0.0233(7) Uani 1 1 d . . . . .
C7 C 0.7426(4) 0.5085(3) 0.6403(3) 0.0239(7) Uani 1 1 d . . . . .
H7 H 0.821069 0.559747 0.654279 0.029 Uiso 1 1 calc R . . . .
C8 C 0.7535(4) 0.5207(4) 0.4604(3) 0.0255(7) Uani 1 1 d . . . . .
H8 H 0.833791 0.572565 0.499000 0.031 Uiso 1 1 calc R . . . .
C9 C 0.6568(4) 0.5992(3) 0.3740(3) 0.0252(7) Uani 1 1 d . . . . .
C10 C 0.6328(4) 0.5779(4) 0.2627(3) 0.0293(8) Uani 1 1 d . . . . .
H10 H 0.675927 0.510832 0.238992 0.035 Uiso 1 1 calc R . . . .
C11 C 0.5460(4) 0.6550(4) 0.1874(3) 0.0349(9) Uani 1 1 d . . . . .
H11 H 0.531543 0.641343 0.112181 0.042 Uiso 1 1 calc R . . . .
C12 C 0.4807(5) 0.7512(4) 0.2209(4) 0.0417(10) Uani 1 1 d . . . . .
H12 H 0.419374 0.802088 0.168882 0.050 Uiso 1 1 calc R . . . .
C13 C 0.5045(5) 0.7738(4) 0.3308(4) 0.0421(10) Uani 1 1 d . . . . .
H13 H 0.460182 0.840383 0.354137 0.050 Uiso 1 1 calc R . . . .
C14 C 0.5933(4) 0.6985(4) 0.4063(3) 0.0332(9) Uani 1 1 d . . . . .
H14 H 0.611044 0.715225 0.481378 0.040 Uiso 1 1 calc R . . . .
C15 C 0.8073(4) 0.4071(4) 0.4185(3) 0.0318(8) Uani 1 1 d . . . . .
H15A H 0.871457 0.363908 0.479096 0.048 Uiso 1 1 calc GR . . . .
H15B H 0.854497 0.431291 0.365820 0.048 Uiso 1 1 calc GR . . . .
H15C H 0.730657 0.352620 0.383488 0.048 Uiso 1 1 calc GR . . . .
Cl1 Cl 0.82853(10) 0.56931(11) 1.04749(7) 0.0388(2) Uani 1 1 d . . . . .
N1 N 0.6834(3) 0.4815(3) 0.5409(2) 0.0226(6) Uani 1 1 d . . . . .
O1 O 0.5334(3) 0.3194(3) 0.6417(2) 0.0257(5) Uani 1 1 d . . . . .
Zn1 Zn 0.500000 0.39209(6) 0.500000 0.02228(15) Uani 1 2 d S T P . .
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0181 0.0091 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Br Br -0.6763 1.2805 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Cl Cl 0.3639 0.7018 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Zn Zn -1.5491 0.6778 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_exptl_crystal_face_index_h
_exptl_crystal_face_index_k
_exptl_crystal_face_index_l
_exptl_crystal_face_perp_dist
-1 0 1 0.0215
1 0 -1 0.0085
2 5 3 0.0902
-2 -5 -3 0.0700
3 -5 2 0.0622
-3 5 -2 0.0475
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
C2 C1 C6 115.3(3) . . ?
O1 C1 C2 119.8(3) . . ?
O1 C1 C6 124.9(3) . . ?
C1 C2 Br1 117.0(3) . . ?
C3 C2 Br1 119.2(3) . . ?
C3 C2 C1 123.7(3) . . ?
C2 C3 H3 120.4 . . ?
C2 C3 C4 119.2(3) . . ?
C4 C3 H3 120.4 . . ?
C3 C4 Cl1 120.0(3) . . ?
C5 C4 C3 120.6(3) . . ?
C5 C4 Cl1 119.4(3) . . ?
C4 C5 H5 120.0 . . ?
C4 C5 C6 120.1(4) . . ?
C6 C5 H5 120.0 . . ?
C1 C6 C7 123.4(3) . . ?
C5 C6 C1 121.2(3) . . ?
C5 C6 C7 115.3(3) . . ?
C6 C7 H7 116.5 . . ?
N1 C7 C6 126.9(3) . . ?
N1 C7 H7 116.5 . . ?
C9 C8 H8 107.9 . . ?
C9 C8 C15 115.0(3) . . ?
C15 C8 H8 107.9 . . ?
N1 C8 H8 107.9 . . ?
N1 C8 C9 109.4(3) . . ?
N1 C8 C15 108.4(3) . . ?
C10 C9 C8 122.6(3) . . ?
C14 C9 C8 118.6(3) . . ?
C14 C9 C10 118.8(4) . . ?
C9 C10 H10 120.0 . . ?
C11 C10 C9 120.0(4) . . ?
C11 C10 H10 120.0 . . ?
C10 C11 H11 119.8 . . ?
C12 C11 C10 120.5(4) . . ?
C12 C11 H11 119.8 . . ?
C11 C12 H12 120.0 . . ?
C11 C12 C13 120.0(4) . . ?
C13 C12 H12 120.0 . . ?
C12 C13 H13 120.2 . . ?
C14 C13 C12 119.6(4) . . ?
C14 C13 H13 120.2 . . ?
C9 C14 H14 119.5 . . ?
C13 C14 C9 121.1(4) . . ?
C13 C14 H14 119.5 . . ?
C8 C15 H15A 109.5 . . ?
C8 C15 H15B 109.5 . . ?
C8 C15 H15C 109.5 . . ?
H15A C15 H15B 109.5 . . ?
H15A C15 H15C 109.5 . . ?
H15B C15 H15C 109.5 . . ?
C7 N1 C8 116.9(3) . . ?
C7 N1 Zn1 119.7(2) . . ?
C8 N1 Zn1 123.5(2) . . ?
C1 O1 Zn1 122.1(2) . . ?
N1 Zn1 N1 122.95(18) 2_656 . ?
O1 Zn1 N1 93.36(11) . . ?
O1 Zn1 N1 93.36(11) 2_656 2_656 ?
O1 Zn1 N1 109.45(11) . 2_656 ?
O1 Zn1 N1 109.45(11) 2_656 . ?
O1 Zn1 O1 131.59(17) . 2_656 ?
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
Br1 C2 1.900(4) . ?
C1 C2 1.420(5) . ?
C1 C6 1.424(5) . ?
C1 O1 1.303(4) . ?
C2 C3 1.378(5) . ?
C3 H3 0.9500 . ?
C3 C4 1.391(6) . ?
C4 C5 1.381(5) . ?
C4 Cl1 1.743(4) . ?
C5 H5 0.9500 . ?
C5 C6 1.413(5) . ?
C6 C7 1.452(5) . ?
C7 H7 0.9500 . ?
C7 N1 1.282(5) . ?
C8 H8 1.0000 . ?
C8 C9 1.518(5) . ?
C8 C15 1.518(6) . ?
C8 N1 1.489(4) . ?
C9 C10 1.404(5) . ?
C9 C14 1.388(5) . ?
C10 H10 0.9500 . ?
C10 C11 1.389(6) . ?
C11 H11 0.9500 . ?
C11 C12 1.381(7) . ?
C12 H12 0.9500 . ?
C12 C13 1.390(7) . ?
C13 H13 0.9500 . ?
C13 C14 1.387(6) . ?
C14 H14 0.9500 . ?
C15 H15A 0.9800 . ?
C15 H15B 0.9800 . ?
C15 H15C 0.9800 . ?
N1 Zn1 2.039(3) . ?
O1 Zn1 1.930(3) . ?
loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
Br1 C2 C3 C4 -174.6(3) . . . . ?
C1 C2 C3 C4 0.3(6) . . . . ?
C1 C6 C7 N1 11.8(6) . . . . ?
C2 C1 C6 C5 -1.4(5) . . . . ?
C2 C1 C6 C7 175.9(3) . . . . ?
C2 C1 O1 Zn1 156.6(3) . . . . ?
C2 C3 C4 C5 -1.2(6) . . . . ?
C2 C3 C4 Cl1 176.7(3) . . . . ?
C3 C4 C5 C6 0.7(6) . . . . ?
C4 C5 C6 C1 0.6(6) . . . . ?
C4 C5 C6 C7 -176.9(4) . . . . ?
C5 C6 C7 N1 -170.7(4) . . . . ?
C6 C1 C2 Br1 176.0(3) . . . . ?
C6 C1 C2 C3 1.0(5) . . . . ?
C6 C1 O1 Zn1 -23.7(5) . . . . ?
C6 C7 N1 C8 -172.9(3) . . . . ?
C6 C7 N1 Zn1 8.3(5) . . . . ?
C8 C9 C10 C11 -178.2(3) . . . . ?
C8 C9 C14 C13 179.7(4) . . . . ?
C9 C8 N1 C7 -123.9(4) . . . . ?
C9 C8 N1 Zn1 54.8(4) . . . . ?
C9 C10 C11 C12 -1.3(6) . . . . ?
C10 C9 C14 C13 1.9(6) . . . . ?
C10 C11 C12 C13 1.8(7) . . . . ?
C11 C12 C13 C14 -0.5(7) . . . . ?
C12 C13 C14 C9 -1.4(7) . . . . ?
C14 C9 C10 C11 -0.5(6) . . . . ?
C15 C8 C9 C10 -8.1(5) . . . . ?
C15 C8 C9 C14 174.2(3) . . . . ?
C15 C8 N1 C7 110.0(4) . . . . ?
C15 C8 N1 Zn1 -71.3(3) . . . . ?
Cl1 C4 C5 C6 -177.2(3) . . . . ?
N1 C8 C9 C10 -130.3(4) . . . . ?
N1 C8 C9 C14 52.0(4) . . . . ?
O1 C1 C2 Br1 -4.3(5) . . . . ?
O1 C1 C2 C3 -179.3(4) . . . . ?
O1 C1 C6 C5 178.8(3) . . . . ?
O1 C1 C6 C7 -3.9(6) . . . . ?
