Crystallography Open Database

Information card for entry 4321428

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Coordinates	4321428.cif
Original paper (by DOI)	HTML
External links	ChemSpider

Structure parameters

Formula	C50 H72 O4 Si2
Calculated formula	C50 H72 O4 Si2
SMILES	[Si](Oc1c2cc(C(C)(C)C)cc1Cc1c(O)c(cc(C(C)(C)C)c1)Cc1c(O[Si](C)(C)C)c(cc(c1)C(C)(C)C)Cc1c(O)c(cc(c1)C(C)(C)C)C2)(C)(C)C
Title of publication	Yttrium Calix[4]arene Complexes. Silylation and Silylamine Elimination Reactions on Model Oxo Surfaces
Authors of publication	Reiner Anwander; Jörg Eppinger; Iris Nagl; Wolfgang Scherer; Maxim Tafipolsky; Peter Sirsch
Journal of publication	Inorganic Chemistry
Year of publication	2000
Journal volume	39
Pages of publication	4713 - 4720
a	12.8914 ± 0.0003 Å
b	14.927 ± 0.0005 Å
c	15.1652 ± 0.0004 Å
α	77.293 ± 0.002°
β	65.019 ± 0.002°
γ	72.234 ± 0.002°
Cell volume	2505.01 ± 0.13 Å³
Cell temperature	143 K
Ambient diffraction temperature	143 K
Number of distinct elements	4
Space group number	2
Hermann-Mauguin space group symbol	P -1
Hall space group symbol	-P 1
Residual factor for all reflections	0.0639
Residual factor for significantly intense reflections	0.051
Weighted residual factors for significantly intense reflections	0.1283
Weighted residual factors for all reflections included in the refinement	0.1403
Goodness-of-fit parameter for all reflections included in the refinement	1.161
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
201982 (current)	2017-10-13	cif/ Marking COD entries in range 4 that are known to be related to ChemSpider entries using the _cod_related_entry data loop.	4321428.cif
179317	2016-03-23	cif/4/32/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 4/32/14.	4321428.cif
134621	2015-04-02	The 'cif_fix_values' script with an option '--fix-only-weighting-scheme' and 'cif_filter' script were run over CIF files which included an incorrect value of the data item '_refine_ls_weighting_scheme'. Read the log for more details. There were more than 18k CIF files with values to modify. Usually these incorrect values include comment with formulas, but values of this data item must be an enumerator. The script creates new data item '_refine_ls_weighting_details' to store these comments with formulas, and writes the enumerator 'calc' as a value of data item '_refine_ls_weighting_scheme'. There exists some exceptions in the script.	4321428.cif
130086	2015-01-23	cod/ (robertas@burundukas) The 'cif_fix_values' program was applied to CIFs that have generated the validation messages containing tag '_exptl_crystal_density_meas'. 16946 CIFs had a values that were perceived as 'not measured' and they were changed to '?'. The total of 17089 CIFs was changed. Those that were not corrected by 'cif_fix_values' were reformatted by the parser (e.g. a doi tag was moved to another place). The processing command was: mysql -u cod_reader -h www.crystallography.net cod -e \ 'select distinct codid from validation \ where message like \ "%tag%_exptl_crystal_density_meas'\''%"' -NB \ \| xargs -i sh -c 'cif_fix_values {} \ \| cif_filter --add-cif-header {} \ \| sponge {}'	4321428.cif
120105	2014-07-12	Adding DOIs to range 4/32 structures.	4321428.cif
34330	2012-02-24	cif/4/ Reorganising CIF range 4 into a prefix tree.	4321428.cif
18799	2011-05-04	../uploads/cif-deposit/cod/cif Adding structures of 4321428 via cif-deposit CGI script.	4321428.cif