# Electronic Supplementary Material (ESI) for New Journal of Chemistry.
# This journal is © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2022

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
# 
#######################################################################

data_as6
_database_code_depnum_ccdc_archive 'CCDC 2150302'
loop_
_audit_author_name
_audit_author_address
'Mark Roe'
;Sussex university
United Kingdom
;
_audit_update_record             
;
2022-02-05 deposited with the CCDC.	2022-08-30 downloaded from the CCDC.
;
_audit_creation_date             2021-01-15
_audit_creation_method           
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6226)
;
_shelx_SHELXL_version_number     2018/3
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         '2(C17 H17 Ag N2 O2 P), 2(N O3)'
_chemical_formula_sum            'C34 H34 Ag2 N6 O10 P2'
_chemical_formula_weight         964.35
_chemical_melting_point          ?
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'
Ag Ag 0.1306 4.2820 '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'
P P 0.2955 0.4335 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_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.
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_H-M_alt        'C 1 2/c 1'
_space_group_name_Hall           '-C 2yc'
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, y, -z+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y, z-1/2'
'-x+1/2, -y+1/2, -z'
'x+1/2, -y+1/2, z-1/2'

_cell_length_a                   16.6319(8)
_cell_length_b                   9.1023(5)
_cell_length_c                   24.8356(16)
_cell_angle_alpha                90
_cell_angle_beta                 97.289(5)
_cell_angle_gamma                90
_cell_volume                     3729.5(4)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    3125
_cell_measurement_temperature    293
_cell_measurement_theta_max      71.0460
_cell_measurement_theta_min      5.3840
_shelx_estimated_absorpt_T_max   ?
_shelx_estimated_absorpt_T_min   ?
_exptl_absorpt_coefficient_mu    9.794
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.40068
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   
;
CrysAlisPro 1.171.38.46 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_absorpt_special_details   ?
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.718
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_description       prism
_exptl_crystal_F_000             1936
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0252
_diffrn_reflns_av_unetI/netI     0.0367
_diffrn_reflns_Laue_measured_fraction_full 0.983
_diffrn_reflns_Laue_measured_fraction_max 0.981
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            6341
_diffrn_reflns_point_group_measured_fraction_full 0.983
_diffrn_reflns_point_group_measured_fraction_max 0.981
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         68.251
_diffrn_reflns_theta_min         3.588
_diffrn_ambient_temperature      293.0
_diffrn_detector_area_resol_mean 16.1033
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_details      
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  tₑₓₚ   ω     θ     κ     φ   Frames
#--------------------------------------------------------------------------
  1  ω     38.00  65.00   1.00   10.00    --   36.88-178.00 -30.00   27
  2  ω     37.00 102.00   1.00   10.00    --   36.88 178.00  30.00   65
  3  ω    -19.00  76.00   1.00   10.00    --   36.88 -99.00  30.00   95
  4  ω     12.00 102.00   1.00   10.00    --   36.88  77.00 150.00   90
  5  ω     51.00  90.00   1.00   60.00    --  107.00-111.00-180.00   39
  6  ω     42.00  69.00   1.00   60.00    --  107.00 -45.00 -30.00   27
  7  ω     97.00 132.00   1.00   60.00    --  107.00  45.00-150.00   35
  8  ω     43.00 124.00   1.00   60.00    --  107.00 -45.00 120.00   81
  9  ω     55.00 128.00   1.00   60.00    --  107.00 -30.00-120.00   73
 10  ω     47.00 128.00   1.00   60.00    --  107.00 -77.00-120.00   81
 11  ω     51.00 102.00   1.00   60.00    --  107.00 178.00  30.00   51
 12  ω     40.00  70.00   1.00   60.00    --  107.00-111.00 -90.00   30
 13  ω     51.00 113.00   1.00   60.00    --  107.00 -87.00  26.51   62
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini ultra'
_diffrn_measurement_method       'ω scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_source                   ?
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2865
_reflns_number_total             3352
_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;
_reflns_threshold_expression     'I > 2σ(I)'
_computing_cell_refinement       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_refine_diff_density_max         1.072
_refine_diff_density_min         -0.671
_refine_diff_density_rms         0.082
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         3352
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0466
_refine_ls_R_factor_gt           0.0397
_refine_ls_restrained_S_all      1.064
_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/[σ²(Fo²)+(0.0677P)²] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1081
_refine_ls_wR_factor_ref         0.1139
_refine_special_details          ?
_olex2_refinement_description    
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
 At 1.5 times of:
  All O(H,H) groups
2.a Rotating group:
 O2(H2A,H2B)
2.b Aromatic/amide H refined with riding coordinates:
 N2(H2), C1(H1), C2(H2C), C3(H3), C5(H5), C7(H7), C8(H8), C9(H9), C10(H10),
 C11(H11), C13(H13), C14(H14), C15(H15), C16(H16), C17(H17)
;
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     ?
_atom_sites_solution_secondary   ?
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
Ag1 Ag 0.52114(2) 0.69597(4) 0.46676(2) 0.05982(15) Uani 1 1 d . . . . .
P1 P 0.20344(5) 0.45901(10) 0.38060(3) 0.0390(2) Uani 1 1 d . . . . .
O1 O 0.23963(14) 0.3508(3) 0.42203(11) 0.0480(6) Uani 1 1 d . . . . .
O2 O 0.65421(16) 0.6681(4) 0.48095(13) 0.0644(9) Uani 1 1 d . . . . .
H2A H 0.674020 0.672297 0.517897 0.097 Uiso 1 1 d R U . . .
H2B H 0.682580 0.740231 0.464237 0.097 Uiso 1 1 d R U . . .
N1 N 0.39972(19) 0.7802(4) 0.43963(14) 0.0504(8) Uani 1 1 d . . . . .
N2 N 0.19515(17) 0.6297(4) 0.40105(14) 0.0486(7) Uani 1 1 d . . . . .
H2 H 0.146904 0.660936 0.403354 0.058 Uiso 1 1 calc R U . . .
C1 C 0.3833(3) 0.9231(5) 0.4410(2) 0.0630(11) Uani 1 1 d . . . . .
H1 H 0.425774 0.989260 0.449187 0.076 Uiso 1 1 calc R U . . .
C2 C 0.3053(3) 0.9758(5) 0.4308(3) 0.0729(14) Uani 1 1 d . . . . .
H2C H 0.295216 1.076026 0.432852 0.088 Uiso 1 1 calc R U . . .
C3 C 0.2423(2) 0.8791(5) 0.4175(2) 0.0633(11) Uani 1 1 d . . . . .
H3 H 0.189356 0.913430 0.410146 0.076 Uiso 1 1 calc R U . . .
C4 C 0.2585(2) 0.7295(5) 0.41510(15) 0.0444(8) Uani 1 1 d . . . . .
C5 C 0.3386(2) 0.6856(4) 0.42712(16) 0.0463(8) Uani 1 1 d . . . . .
H5 H 0.350408 0.585785 0.426448 0.056 Uiso 1 1 calc R U . . .
C6 C 0.26345(19) 0.4638(4) 0.32507(14) 0.0411(7) Uani 1 1 d . . . . .
C7 C 0.3320(2) 0.3774(5) 0.32650(16) 0.0496(8) Uani 1 1 d . . . . .
H7 H 0.348552 0.319586 0.356748 0.059 Uiso 1 1 calc R U . . .
C8 C 0.3760(2) 0.3773(5) 0.2825(2) 0.0594(10) Uani 1 1 d . . . . .
H8 H 0.422817 0.320812 0.283698 0.071 Uiso 1 1 calc R U . . .
C9 C 0.3510(3) 0.4597(6) 0.23736(19) 0.0661(12) Uani 1 1 d . . . . .
H9 H 0.379536 0.456499 0.207521 0.079 Uiso 1 1 calc R U . . .
C10 C 0.2831(3) 0.5477(7) 0.2363(2) 0.0761(15) Uani 1 1 d . . . . .
H10 H 0.266676 0.605367 0.206009 0.091 Uiso 1 1 calc R U . . .
C11 C 0.2398(3) 0.5503(6) 0.28005(18) 0.0611(11) Uani 1 1 d . . . . .
H11 H 0.194442 0.610439 0.279285 0.073 Uiso 1 1 calc R U . . .
C12 C 0.10110(19) 0.4112(4) 0.35351(14) 0.0425(7) Uani 1 1 d . . . . .
C13 C 0.0435(2) 0.5147(5) 0.33342(16) 0.0505(8) Uani 1 1 d . . . . .
H13 H 0.056744 0.613988 0.333935 0.061 Uiso 1 1 calc R U . . .
C14 C -0.0339(2) 0.4694(5) 0.31261(18) 0.0588(10) Uani 1 1 d . . . . .
H14 H -0.072675 0.538965 0.299938 0.071 Uiso 1 1 calc R U . . .
C15 C -0.0538(3) 0.3231(6) 0.3105(2) 0.0629(12) Uani 1 1 d . . . . .
H15 H -0.105780 0.293985 0.296246 0.076 Uiso 1 1 calc R U . . .
C16 C 0.0034(3) 0.2187(5) 0.32967(18) 0.0576(10) Uani 1 1 d . . . . .
H16 H -0.009836 0.119429 0.327875 0.069 Uiso 1 1 calc R U . . .
C17 C 0.0802(2) 0.2627(5) 0.35142(16) 0.0479(8) Uani 1 1 d . . . . .
H17 H 0.118279 0.192699 0.364798 0.057 Uiso 1 1 calc R U . . .
O3 O 0.4612(3) 0.7767(5) 0.56466(15) 0.0810(11) Uani 1 1 d . . . . .
O4 O 0.52656(19) 0.5742(4) 0.56264(15) 0.0687(9) Uani 1 1 d . . . . .
O5 O 0.4539(2) 0.6191(5) 0.62706(15) 0.0762(10) Uani 1 1 d . . . . .
N3 N 0.48104(18) 0.6563(4) 0.58500(14) 0.0509(8) Uani 1 1 d . . . . .


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;
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
Ag1 O2 2.211(3) . ?
Ag1 N1 2.185(3) . ?
P1 O1 1.495(3) . ?
P1 N2 1.646(4) . ?
P1 C6 1.802(3) . ?
P1 C12 1.802(3) . ?
O2 H2A 0.9356 . ?
O2 H2B 0.9358 . ?
N1 C1 1.331(6) . ?
N1 C5 1.338(5) . ?
N2 H2 0.8600 . ?
N2 C4 1.402(5) . ?
C1 H1 0.9300 . ?
C1 C2 1.377(7) . ?
C2 H2C 0.9300 . ?
C2 C3 1.376(7) . ?
C3 H3 0.9300 . ?
C3 C4 1.391(7) . ?
C4 C5 1.386(5) . ?
C5 H5 0.9300 . ?
C6 C7 1.381(5) . ?
C6 C11 1.383(6) . ?
C7 H7 0.9300 . ?
C7 C8 1.392(6) . ?
C8 H8 0.9300 . ?
C8 C9 1.369(7) . ?
C9 H9 0.9300 . ?
C9 C10 1.381(8) . ?
C10 H10 0.9300 . ?
C10 C11 1.378(6) . ?
C11 H11 0.9300 . ?
C12 C13 1.391(6) . ?
C12 C17 1.395(6) . ?
C13 H13 0.9300 . ?
C13 C14 1.387(6) . ?
C14 H14 0.9300 . ?
C14 C15 1.371(7) . ?
C15 H15 0.9300 . ?
C15 C16 1.386(7) . ?
C16 H16 0.9300 . ?
C16 C17 1.381(6) . ?
C17 H17 0.9300 . ?
O3 N3 1.234(5) . ?
O4 N3 1.244(5) . ?
O5 N3 1.237(5) . ?

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
N1 Ag1 O2 163.07(13) . . ?
O1 P1 N2 116.86(17) . . ?
O1 P1 C6 109.22(16) . . ?
O1 P1 C12 112.12(17) . . ?
N2 P1 C6 106.82(17) . . ?
N2 P1 C12 103.36(17) . . ?
C12 P1 C6 107.97(15) . . ?
Ag1 O2 H2A 111.9 . . ?
Ag1 O2 H2B 113.6 . . ?
H2A O2 H2B 105.8 . . ?
C1 N1 Ag1 121.3(3) . . ?
C1 N1 C5 118.9(3) . . ?
C5 N1 Ag1 119.4(3) . . ?
P1 N2 H2 116.6 . . ?
C4 N2 P1 126.8(2) . . ?
C4 N2 H2 116.6 . . ?
N1 C1 H1 119.1 . . ?
N1 C1 C2 121.8(4) . . ?
C2 C1 H1 119.1 . . ?
C1 C2 H2C 120.2 . . ?
C3 C2 C1 119.5(5) . . ?
C3 C2 H2C 120.2 . . ?
C2 C3 H3 120.3 . . ?
C2 C3 C4 119.3(4) . . ?
C4 C3 H3 120.3 . . ?
C3 C4 N2 120.1(3) . . ?
C5 C4 N2 122.6(4) . . ?
C5 C4 C3 117.4(4) . . ?
N1 C5 C4 123.0(4) . . ?
N1 C5 H5 118.5 . . ?
C4 C5 H5 118.5 . . ?
C7 C6 P1 120.1(3) . . ?
C7 C6 C11 119.6(3) . . ?
C11 C6 P1 120.3(3) . . ?
C6 C7 H7 120.2 . . ?
C6 C7 C8 119.7(4) . . ?
C8 C7 H7 120.2 . . ?
C7 C8 H8 119.8 . . ?
C9 C8 C7 120.5(4) . . ?
C9 C8 H8 119.8 . . ?
C8 C9 H9 120.1 . . ?
C8 C9 C10 119.8(4) . . ?
C10 C9 H9 120.1 . . ?
C9 C10 H10 119.9 . . ?
C11 C10 C9 120.2(5) . . ?
C11 C10 H10 119.9 . . ?
C6 C11 H11 119.9 . . ?
C10 C11 C6 120.2(4) . . ?
C10 C11 H11 119.9 . . ?
C13 C12 P1 123.1(3) . . ?
C13 C12 C17 119.1(4) . . ?
C17 C12 P1 117.9(3) . . ?
C12 C13 H13 120.1 . . ?
C14 C13 C12 119.8(4) . . ?
C14 C13 H13 120.1 . . ?
C13 C14 H14 119.6 . . ?
C15 C14 C13 120.8(4) . . ?
C15 C14 H14 119.6 . . ?
C14 C15 H15 120.0 . . ?
C14 C15 C16 120.0(4) . . ?
C16 C15 H15 120.0 . . ?
C15 C16 H16 120.1 . . ?
C17 C16 C15 119.7(4) . . ?
C17 C16 H16 120.1 . . ?
C12 C17 H17 119.7 . . ?
C16 C17 C12 120.6(4) . . ?
C16 C17 H17 119.7 . . ?
O3 N3 O4 119.8(4) . . ?
O3 N3 O5 118.8(4) . . ?
O5 N3 O4 121.4(4) . . ?

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
Ag1 N1 C1 C2 -171.5(4) . . . . ?
Ag1 N1 C5 C4 173.0(3) . . . . ?
P1 N2 C4 C3 162.7(4) . . . . ?
P1 N2 C4 C5 -17.4(6) . . . . ?
P1 C6 C7 C8 177.4(3) . . . . ?
P1 C6 C11 C10 -176.4(4) . . . . ?
P1 C12 C13 C14 179.2(3) . . . . ?
P1 C12 C17 C16 -178.1(3) . . . . ?
O1 P1 N2 C4 70.4(4) . . . . ?
O1 P1 C6 C7 -1.3(4) . . . . ?
O1 P1 C6 C11 176.6(3) . . . . ?
O1 P1 C12 C13 152.2(3) . . . . ?
O1 P1 C12 C17 -29.6(3) . . . . ?
N1 C1 C2 C3 -1.5(9) . . . . ?
N2 P1 C6 C7 125.9(3) . . . . ?
N2 P1 C6 C11 -56.2(4) . . . . ?
N2 P1 C12 C13 25.5(4) . . . . ?
N2 P1 C12 C17 -156.3(3) . . . . ?
N2 C4 C5 N1 178.8(4) . . . . ?
C1 N1 C5 C4 0.5(6) . . . . ?
C1 C2 C3 C4 0.6(9) . . . . ?
C2 C3 C4 N2 -179.3(5) . . . . ?
C2 C3 C4 C5 0.7(7) . . . . ?
C3 C4 C5 N1 -1.3(6) . . . . ?
C5 N1 C1 C2 1.0(8) . . . . ?
C6 P1 N2 C4 -52.1(4) . . . . ?
C6 P1 C12 C13 -87.4(3) . . . . ?
C6 P1 C12 C17 90.7(3) . . . . ?
C6 C7 C8 C9 -1.4(7) . . . . ?
C7 C6 C11 C10 1.5(7) . . . . ?
C7 C8 C9 C10 2.3(8) . . . . ?
C8 C9 C10 C11 -1.3(9) . . . . ?
C9 C10 C11 C6 -0.6(9) . . . . ?
C11 C6 C7 C8 -0.6(6) . . . . ?
C12 P1 N2 C4 -165.9(3) . . . . ?
C12 P1 C6 C7 -123.5(3) . . . . ?
C12 P1 C6 C11 54.4(4) . . . . ?
C12 C13 C14 C15 -1.4(7) . . . . ?
C13 C12 C17 C16 0.1(6) . . . . ?
C13 C14 C15 C16 0.5(7) . . . . ?
C14 C15 C16 C17 0.8(7) . . . . ?
C15 C16 C17 C12 -1.0(6) . . . . ?
C17 C12 C13 C14 1.1(6) . . . . ?


_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
;
