Construction of a homologous series of metal nanoclusters and implications for structure-activity correlations.
Li, Qinzhen; Jiang, Tingting; Yang, Sha; Chai, Jinsong; Yu, Haizhu; Zhu, Manzhou; Chemical science 16 (2025) 19669–19676; doi:10.1039/d5sc06282a

data_1575829
_publ_section_title
;
 Construction of a homologous series of metal nanoclusters and
 implications for structure-activity correlations.
;
_journal_issue                   42
_journal_name_full               'Chemical science'
_journal_page_first              19669
_journal_page_last               19676
_journal_paper_doi               10.1039/d5sc06282a
_journal_volume                  16
_journal_year                    2025
_chemical_formula_moiety         'C176 H238 Au24 O P2 S14, 2.5(C7 H8)'
_chemical_formula_sum            'C193.5 H258 Au24 O P2 S14'
_chemical_formula_weight         7837.96
_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
_audit_creation_date             2024-07-29
_audit_creation_method
;
Olex2 1.5
(compiled 2023.03.06 svn.rbb2c1857 for OlexSys, GUI svn.r6748)
;
_audit_update_record
;
2024-07-29 deposited with the CCDC.	2025-09-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 105.1790(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   19.8760(2)
_cell_length_b                   36.5485(4)
_cell_length_c                   33.0304(3)
_cell_measurement_reflns_used    171160
_cell_measurement_temperature    120
_cell_measurement_theta_max      70.35
_cell_measurement_theta_min      3.69
_cell_volume                     23157.4(4)
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      120
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'STOE STADIVARI'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54186
_diffrn_reflns_av_R_equivalents  0.0508
_diffrn_reflns_av_unetI/netI     0.0543
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.974
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       42
_diffrn_reflns_limit_k_min       -43
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            179076
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.974
_diffrn_reflns_theta_full        67.686
_diffrn_reflns_theta_max         69.599
_diffrn_reflns_theta_min         4.333
_exptl_absorpt_coefficient_mu    29.378
_exptl_absorpt_correction_T_max  0.1812
_exptl_absorpt_correction_T_min  0.0108
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
STOE X-Red32, absorption correction by Gaussian integration, analogous to
P. Coppens, "The Evaluation of Absorption and Extinction in Single-Crystal
Structure Analysis", published in: F. R. Ahmed (Editor), "Crystallographic
Computing", Munksgaard, Copenhagen (1970), 255 - 270.
Afterwards scaling of reflection intensities was performed within STOE LANA.
J. Koziskova, F. Hahn, J. Richter, J. Kozisek, "Comparison of different
absorption corrections on the model structure of tetrakis(\m~2~-acetato)-
diaqua-di-copper(II)", Acta Chimica Slovaca, vol. 9, no. 2, 2016, pp. 136 - 140.
;
_exptl_crystal_colour            brown
_exptl_crystal_colour_primary    brown
_exptl_crystal_density_diffrn    2.248
_exptl_crystal_description       block
_exptl_crystal_F_000             14308
_refine_diff_density_max         4.915
_refine_diff_density_min         -2.795
_refine_diff_density_rms         0.355
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     2214
_refine_ls_number_reflns         42445
_refine_ls_number_restraints     1369
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0856
_refine_ls_R_factor_gt           0.0746
_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^)+(0.0816P)^2^+1179.2114P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1975
_refine_ls_wR_factor_ref         0.2024
_reflns_Friedel_coverage         0.000
_reflns_number_gt                33969
_reflns_number_total             42445
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc06282a2.cif
_cod_data_source_block           Au24
_cod_depositor_comments
'Adding full bibliography for 1575828--1575830.cif.'
_cod_original_formula_sum        'C193.50 H258 Au24 O P2 S14'
_cod_database_code               1575829
_shelx_shelxl_version_number     2016/4
_olex2_refinement_description
;
1. Restrained distances
 C8GA-C7GA = C8GA-C2HA = C2HA-C0HA = C9GA-C0HA = C1HA-C0HA = C5GA-C1HA = C6GA-
 C5GA = C5GA-C4GA = C8GA-C4GA = C6GA-C3GA = C9GA-C3GA = C7GA-C3GA
 1.55 with sigma of 0.01
 C6GA-C7GA
 2.5 with sigma of 0.01
 C9GA-C6GA
 2.5 with sigma of 0.01
 C1HA-C4GA
 2.5 with sigma of 0.01
 C0HA-C8GA
 2.5 with sigma of 0.01
 C1HA-C9GA
 2.5 with sigma of 0.01
 C6GA-C1HA
 2.5 with sigma of 0.01
 C8HA-C50
 1.5 with sigma of 0.01
 C4IA-C120
 1.5 with sigma of 0.01
 C9IA-C174
 1.5 with sigma of 0.01
 C4JA-C2JA
 1.5 with sigma of 0.01
 C8HA-C0IA \\sim C8HA-C2IA
 with sigma of 0.02
 C4IA-C3IA \\sim C4IA-C7IA
 with sigma of 0.02
 C2JA-C0JA \\sim C2JA-C5JA
 with sigma of 0.02
2. Restrained planarity
 C4IA, C3IA, C7IA, C44
 with sigma of 0.1
 C9IA, C174, C62, C48
 with sigma of 0.1
 C2JA, C0JA, C5JA, C3JA
 with sigma of 0.1
3. Rigid bond restraints
 C174, C95, C48, C105, C9IA, C8IA, C62
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
 C104, C2JA, C4JA, C0JA, C5JA, C1JA, C3JA
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
 C1IA, C8HA, C50, C2IA, C0IA, C65, C9HA
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
 C4HA, C31, C83, C5HA, C3HA, C6HA, C7HA
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
 C120, C7IA, C6IA, C3IA, C4IA, C44, C5IA
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
4. Uiso/Uaniso restraints and constraints
Uanis(C3) \\sim Ueq, Uanis(C9) \\sim Ueq, Uanis(C23) \\sim Ueq, Uanis(C26)
\\sim Ueq, Uanis(C63) \\sim Ueq, Uanis(C74) \\sim Ueq, Uanis(C75) \\sim Ueq,
Uanis(C92) \\sim Ueq, Uanis(C94) \\sim Ueq, Uanis(C2) \\sim Ueq, Uanis(C0AA)
\\sim Ueq, Uanis(C30) \\sim Ueq, Uanis(C56) \\sim Ueq, Uanis(C86) \\sim Ueq,
Uanis(C19) \\sim Ueq, Uanis(C2AA) \\sim Ueq, Uanis(C28) \\sim Ueq, Uanis(C1AA)
\\sim Ueq, Uanis(C42) \\sim Ueq, Uanis(C43) \\sim Ueq, Uanis(C55) \\sim Ueq,
Uanis(C79) \\sim Ueq, Uanis(C84) \\sim Ueq, Uanis(C9BA) \\sim Ueq, Uanis(C113)
\\sim Ueq, Uanis(C116) \\sim Ueq, Uanis(C119) \\sim Ueq, Uanis(C7BA) \\sim Ueq,
Uanis(C132) \\sim Ueq, Uanis(C138) \\sim Ueq, Uanis(C144) \\sim Ueq,
Uanis(C148) \\sim Ueq, Uanis(C168) \\sim Ueq, Uanis(C170) \\sim Ueq,
Uanis(C188) \\sim Ueq, Uanis(C192) \\sim Ueq, Uanis(C5AA) \\sim Ueq, Uanis(C20)
\\sim Ueq, Uanis(C32) \\sim Ueq, Uanis(C7AA) \\sim Ueq, Uanis(C8AA) \\sim Ueq,
Uanis(C45) \\sim Ueq, Uanis(C53) \\sim Ueq, Uanis(C3AA) \\sim Ueq, Uanis(C9AA)
\\sim Ueq, Uanis(C64) \\sim Ueq, Uanis(C68) \\sim Ueq, Uanis(C82) \\sim Ueq,
Uanis(C88) \\sim Ueq, Uanis(C90) \\sim Ueq, Uanis(C91) \\sim Ueq, Uanis(C108)
\\sim Ueq, Uanis(C111) \\sim Ueq, Uanis(C130) \\sim Ueq, Uanis(C137) \\sim Ueq,
Uanis(C6AA) \\sim Ueq, Uanis(C140) \\sim Ueq, Uanis(C147) \\sim Ueq,
Uanis(C154) \\sim Ueq, Uanis(C158) \\sim Ueq, Uanis(C166) \\sim Ueq,
Uanis(C4AA) \\sim Ueq, Uanis(C173) \\sim Ueq, Uanis(C190) \\sim Ueq,
Uanis(C1BA) \\sim Ueq, Uanis(C2BA) \\sim Ueq, Uanis(C3BA) \\sim Ueq, Uanis(C34)
\\sim Ueq, Uanis(C36) \\sim Ueq, Uanis(C1CA) \\sim Ueq, Uanis(C4BA) \\sim Ueq,
Uanis(C58) \\sim Ueq, Uanis(C87) \\sim Ueq, Uanis(C100) \\sim Ueq, Uanis(C0BA)
\\sim Ueq, Uanis(C5BA) \\sim Ueq, Uanis(C0CA) \\sim Ueq, Uanis(C60) \\sim Ueq,
Uanis(C72) \\sim Ueq, Uanis(C85) \\sim Ueq, Uanis(C6BA) \\sim Ueq, Uanis(C135)
\\sim Ueq, Uanis(C139) \\sim Ueq, Uanis(C47) \\sim Ueq, Uanis(C123) \\sim Ueq,
Uanis(C8BA) \\sim Ueq, Uanis(C7) \\sim Ueq, Uanis(C10) \\sim Ueq, Uanis(C24)
\\sim Ueq, Uanis(C33) \\sim Ueq, Uanis(C37) \\sim Ueq, Uanis(C54) \\sim Ueq,
Uanis(C66) \\sim Ueq, Uanis(C101) \\sim Ueq, Uanis(C103) \\sim Ueq, Uanis(C6)
\\sim Ueq, Uanis(C3CA) \\sim Ueq, Uanis(C46) \\sim Ueq, Uanis(C51) \\sim Ueq,
Uanis(C2CA) \\sim Ueq, Uanis(C4CA) \\sim Ueq, Uanis(C69) \\sim Ueq, Uanis(C71)
\\sim Ueq, Uanis(C81) \\sim Ueq, Uanis(C102) \\sim Ueq, Uanis(C13) \\sim Ueq,
Uanis(C6CA) \\sim Ueq, Uanis(C5CA) \\sim Ueq, Uanis(C49) \\sim Ueq, Uanis(C7CA)
\\sim Ueq, Uanis(C61) \\sim Ueq, Uanis(C8CA) \\sim Ueq, Uanis(C80) \\sim Ueq,
Uanis(C2DA) \\sim Ueq, Uanis(C1DA) \\sim Ueq, Uanis(C21) \\sim Ueq, Uanis(C25)
\\sim Ueq, Uanis(C3DA) \\sim Ueq, Uanis(C5DA) \\sim Ueq, Uanis(C4DA) \\sim Ueq,
Uanis(C0DA) \\sim Ueq, Uanis(C6DA) \\sim Ueq, Uanis(C73) \\sim Ueq, Uanis(C9CA)
\\sim Ueq, Uanis(C7DA) \\sim Ueq, Uanis(C8DA) \\sim Ueq, Uanis(C9DA) \\sim Ueq,
Uanis(C27) \\sim Ueq, Uanis(C29) \\sim Ueq, Uanis(C0EA) \\sim Ueq, Uanis(C57)
\\sim Ueq, Uanis(C2EA) \\sim Ueq, Uanis(C77) \\sim Ueq, Uanis(C1EA) \\sim Ueq,
Uanis(C11) \\sim Ueq, Uanis(C15) \\sim Ueq, Uanis(C7EA) \\sim Ueq, Uanis(C6EA)
\\sim Ueq, Uanis(C38) \\sim Ueq, Uanis(C4EA) \\sim Ueq, Uanis(C59) \\sim Ueq,
Uanis(C5EA) \\sim Ueq, Uanis(C3EA) \\sim Ueq, Uanis(C22) \\sim Ueq, Uanis(C9EA)
\\sim Ueq, Uanis(C8EA) \\sim Ueq, Uanis(C1FA) \\sim Ueq, Uanis(C2FA) \\sim Ueq,
Uanis(C8) \\sim Ueq, Uanis(C12) \\sim Ueq, Uanis(C14) \\sim Ueq, Uanis(C3FA)
\\sim Ueq, Uanis(C0FA) \\sim Ueq, Uanis(C4FA) \\sim Ueq, Uanis(C4) \\sim Ueq,
Uanis(C18) \\sim Ueq, Uanis(C7FA) \\sim Ueq, Uanis(C8FA) \\sim Ueq, Uanis(C5FA)
\\sim Ueq, Uanis(C17) \\sim Ueq, Uanis(C6FA) \\sim Ueq, Uanis(C9FA) \\sim Ueq,
Uanis(C2GA) \\sim Ueq, Uanis(C1GA) \\sim Ueq, Uanis(C0GA) \\sim Ueq, Uanis(C52)
\\sim Ueq, Uanis(C3GA) \\sim Ueq, Uanis(C6GA) \\sim Ueq, Uanis(C5GA) \\sim Ueq,
Uanis(C4GA) \\sim Ueq, Uanis(C7GA) \\sim Ueq, Uanis(C8GA) \\sim Ueq,
Uanis(C1HA) \\sim Ueq, Uanis(C9GA) \\sim Ueq, Uanis(C0HA) \\sim Ueq,
Uanis(C2HA) \\sim Ueq, Uanis(C31) \\sim Ueq, Uanis(C83) \\sim Ueq, Uanis(C4HA)
\\sim Ueq, Uanis(C7HA) \\sim Ueq, Uanis(C6HA) \\sim Ueq, Uanis(C5HA) \\sim Ueq,
Uanis(C3HA) \\sim Ueq, Uanis(C8HA) \\sim Ueq, Uanis(C2IA) \\sim Ueq, Uanis(C65)
\\sim Ueq, Uanis(C1IA) \\sim Ueq, Uanis(C9HA) \\sim Ueq, Uanis(C0IA) \\sim Ueq,
Uanis(C50) \\sim Ueq, Uanis(C7IA) \\sim Ueq, Uanis(C120) \\sim Ueq, Uanis(C3IA)
\\sim Ueq, Uanis(C5IA) \\sim Ueq, Uanis(C44) \\sim Ueq, Uanis(C6IA) \\sim Ueq,
Uanis(C4IA) \\sim Ueq, Uanis(C95) \\sim Ueq, Uanis(C174) \\sim Ueq, Uanis(C105)
\\sim Ueq, Uanis(C62) \\sim Ueq, Uanis(C8IA) \\sim Ueq, Uanis(C48) \\sim Ueq,
Uanis(C9IA) \\sim Ueq, Uanis(C2JA) \\sim Ueq, Uanis(C4JA) \\sim Ueq,
Uanis(C0JA) \\sim Ueq, Uanis(C1JA) \\sim Ueq, Uanis(C3JA) \\sim Ueq,
Uanis(C104) \\sim Ueq, Uanis(C5JA) \\sim Ueq: with sigma of 0.01 and sigma for
terminal atoms of 0.02
5. Others
 Fixed Sof: C31(0.5) C83(0.5) H83(0.5) C4HA(0.5) H4HA(0.5) C7HA(0.5) H7HA(0.5)
 C6HA(0.5) H6HA(0.5) C5HA(0.5) H5HA(0.5) C3HA(0.5) H3HA(0.5) H3HB(0.5)
 H3HC(0.5) C8HA(0.5) H8HA(0.5) H8HB(0.5) H8HC(0.5) C2IA(0.5) H2IA(0.5) C65(0.5)
 H65(0.5) C1IA(0.5) H1IA(0.5) C9HA(0.5) H9HA(0.5) C0IA(0.5) H0IA(0.5) C50(0.5)
 C7IA(0.5) H7IA(0.5) C120(0.5) C3IA(0.5) H3IA(0.5) C5IA(0.5) H5IA(0.5) C44(0.5)
 H44(0.5) C6IA(0.5) H6IA(0.5) C4IA(0.5) H4IA(0.5) H4IB(0.5) H4IC(0.5) C95(0.5)
 H95(0.5) C174(0.5) C105(0.5) H105(0.5) C62(0.5) H62(0.5) C8IA(0.5) H8IA(0.5)
 C48(0.5) H48(0.5) C9IA(0.5) H9IA(0.5) H9IB(0.5) H9IC(0.5) C2JA(0.5) H2JA(0.5)
 H2JB(0.5) H2JC(0.5) C4JA(0.5) C0JA(0.5) H0JA(0.5) C1JA(0.5) H1JA(0.5)
 C3JA(0.5) H3JA(0.5) C104(0.5) H104(0.5) C5JA(0.5) H5JA(0.5)
6.a Ternary CH refined with riding coordinates:
 C5AA(H5AA), C45(H45), C68(H68), C82(H82), C111(H111), C6AA(H6AA), C140(H140),
 C173(H173), C3BA(H3BA), C36(H36), C58(H58), C87(H87), C60(H60), C135(H135),
 C47(H47), C66(H66), C101(H101), C103(H103), C3CA(H3CA), C51(H51), C4CA(H4CA),
 C8CA(H8CA), C80(H80), C21(H21), C3DA(H3DA), C5DA(H5DA), C6DA(H6DA), C0EA(H0EA),
  C57(H57), C11(H11), C7EA(H7EA), C59(H59), C8EA(H8EA), C2FA(H2FA), C3FA(H3FA),
 C18(H18), C17(H17), C1GA(H1GA), C0GA(H0GA), C5GA(H5GA), C8GA(H8GA), C0HA(H0HA)
6.b Secondary CH2 refined with riding coordinates:
 C20(H20A,H20B), C32(H32A,H32B), C7AA(H7AA,H7AB), C8AA(H8AA,H8AB), C53(H53A,
 H53B), C3AA(H3AA,H3AB), C9AA(H9AA,H9AB), C64(H64A,H64B), C88(H88A,H88B),
 C108(H10A,H10B), C130(H13A,H13B), C137(H13C,H13D), C147(H14A,H14B), C154(H15A,
 H15B), C158(H15C,H15D), C166(H16A,H16B), C4AA(H4AA,H4AB), C1BA(H1BA,H1BB),
 C2BA(H2BA,H2BB), C34(H34A,H34B), C1CA(H1CA,H1CB), C4BA(H4BA,H4BB), C100(H10C,
 H10D), C0BA(H0BA,H0BB), C72(H72A,H72B), C85(H85A,H85B), C6BA(H6BA,H6BB),
 C139(H13E,H13F), C123(H12A,H12B), C8BA(H8BA,H8BB), C10(H10E,H10F), C24(H24A,
 H24B), C33(H33A,H33B), C37(H37A,H37B), C54(H54A,H54B), C6(H6A,H6B), C46(H46A,
 H46B), C2CA(H2CA,H2CB), C69(H69A,H69B), C81(H81A,H81B), C102(H10G,H10H),
 C13(H13G,H13H), C6CA(H6CA,H6CB), C5CA(H5CA,H5CB), C49(H49A,H49B), C7CA(H7CA,
 H7CB), C2DA(H2DA,H2DB), C25(H25A,H25B), C4DA(H4DA,H4DB), C0DA(H0DA,H0DB),
 C73(H73A,H73B), C9CA(H9CA,H9CB), C7DA(H7DA,H7DB), C8DA(H8DA,H8DB), C27(H27A,
 H27B), C29(H29A,H29B), C2EA(H2EA,H2EB), C77(H77A,H77B), C1EA(H1EA,H1EB),
 C15(H15E,H15F), C6EA(H6EA,H6EB), C38(H38A,H38B), C5EA(H5EA,H5EB), C3EA(H3EA,
 H3EB), C22(H22A,H22B), C9EA(H9EA,H9EB), C1FA(H1FA,H1FB), C8(H8A,H8B), C12(H12C,
 H12D), C14(H14C,H14D), C4FA(H4FA,H4FB), C4(H4A,H4B), C7FA(H7FA,H7FB),
 C8FA(H8FA,H8FB), C5FA(H5FA,H5FB), C9FA(H9FA,H9FB), C2GA(H2GA,H2GB), C52(H52A,
 H52B), C6GA(H6GA,H6GB), C4GA(H4GA,H4GB), C7GA(H7GA,H7GB), C1HA(H1HA,H1HB),
 C9GA(H9GA,H9GB), C2HA(H2HA,H2HB)
6.c Aromatic/amide H refined with riding coordinates:
 C63(H63), C74(H74), C75(H75), C92(H92), C94(H94), C2(H2), C19(H19),
 C2AA(H2AA), C28(H28), C1AA(H1AA), C42(H42), C43(H43), C55(H55), C79(H79),
 C84(H84), C9BA(H9BA), C113(H113), C116(H116), C119(H119), C7BA(H7BA),
 C132(H132), C138(H138), C144(H144), C148(H148), C168(H168), C170(H170),
 C188(H188), C192(H192), C83(H83), C4HA(H4HA), C7HA(H7HA), C6HA(H6HA),
 C5HA(H5HA), C2IA(H2IA), C65(H65), C1IA(H1IA), C9HA(H9HA), C0IA(H0IA),
 C7IA(H7IA), C3IA(H3IA), C5IA(H5IA), C44(H44), C6IA(H6IA), C95(H95), C105(H105),
  C62(H62), C8IA(H8IA), C48(H48), C0JA(H0JA), C1JA(H1JA), C3JA(H3JA),
 C104(H104), C5JA(H5JA)
6.d Fitted hexagon refined as free rotating group:
 C31(C83,C4HA,C7HA,C6HA,C5HA), C2IA(C65,C1IA,C9HA,C0IA,C50), C7IA(C120,C3IA,
 C5IA,C44,C6IA), C95(C174,C105,C62,C8IA,C48), C4JA(C0JA,C1JA,C3JA,C104,C5JA)
6.e Idealised Me refined as rotating group:
 C3HA(H3HA,H3HB,H3HC), C8HA(H8HA,H8HB,H8HC), C4IA(H4IA,H4IB,H4IC), C9IA(H9IA,
 H9IB,H9IC), C2JA(H2JA,H2JB,H2JC)
;
_shelx_res_checksum              58050
_shelx_fab_checksum              72511
_olex2_submission_special_instructions 'No special instructions were received'