Azamacrocycles and tertiary amines can be used to form size tuneable hollow structures or monodisperse oxide nanoparticles depending on the 'M' source.
Tilburey, Graham E.; Blundell, Toby J.; Argent, Stephen P.; Perry, Carole C.; Dalton transactions (Cambridge, England : 2003) 48 (2019) 15470–15479; doi:10.1039/c9dt02080b

data_7700342
_publ_section_title
;
 Azamacrocycles and tertiary amines can be used to form size tuneable
 hollow structures or monodisperse oxide nanoparticles depending on the
 'M' source.
;
_journal_issue                   41
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              15470
_journal_page_last               15479
_journal_paper_doi               10.1039/c9dt02080b
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C18 H12 O6 Si, C10 H26 N4, H2 O'
_chemical_formula_sum            'C28 H40 N4 O7 Si'
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_space_group_name_Hall           '-P 1'
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_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
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Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
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2019-05-14 deposited with the CCDC.    2019-06-17 downloaded from the CCDC.
;
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'DIALS 2theta refinement, DIALS 1.14.3-g2ab223656-release'
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;
aimless (Evans, P. R. and Murshudov, G. N., 2013)
ccp4 (Winn, M. D. et al., 2011)
DIALS 1.14.3-g2ab223656-release (Winter, G. et al., 2018)
pointless (Evans, P., 2006)
XIA2 0.5.884-g39f26010-dials-1.14 (Winter, G., 2010)
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CCP4 7.0.072: AIMLESS, version 0.7.4 : 13/12/18
Scaling & analysis of unmerged intensities, absorption correction using spherical harmonics
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.1054P)^2^] where P=(Fo^2^+2Fc^2^)/3'
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_cod_depositor_comments          'Adding full bibliography for 7700342.cif.'
_cod_original_cell_volume        1379.86(3)
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;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All O(H,H) groups
2.a Free rotating group:
 O7(H7A,H7B)
2.b Secondary CH2 refined with riding coordinates:
 C19(H19A,H19B), C20(H20A,H20B), C21(H21A,H21B), C22(H22A,H22B), C23(H23A,
 H23B), C24(H24A,H24B), C25(H25A,H25B), C26(H26A,H26B), C27(H27A,H27B),
 C28(H28A,H28B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4A), C5(H5), C6(H6), C9(H9), C10(H10), C11(H11), C12(H12),
 C15(H15), C16(H16), C17(H17), C18(H18)
;
_olex2_submission_original_sample_id SATSTC
_olex2_submission_special_instructions 'No special instructions were received'