Crystal structure of 1,3-bis(diethoxyphosphoryl)-2,4-bis(ethylacetate)-p-tert-butylcalix[4]arene, C60H86O14P2
نویسندگان
چکیده
منابع مشابه
Crystal structure of tert-butyldiphenylphosphine oxide
In the structure of the title triorganophosphine oxide, C16H19OP, the P-O bond is 1.490 (1) Å. The P atom has a distorted tetrahedral geometry. The O atom inter-acts with both phenyl groups of a neighboring mol-ecule [C⋯O = 2.930 (3) and 2.928 (4) Å]. The C-O interaction directs an extended supramolecular arrangement along the a-axis.
متن کاملt ( 10 ; 12 ) ( q 24 ; p 13 )
Clinics and pathology Disease Myeloid disorders: Myelodysplastic syndrome ( MDS ) type refractory anemia (RA) (Wlodarska et al., 1995) and refractory anemia with excess blasts (RAEB) (Struski et al., 2008). Philadelphia chromosome positive chronic myeloid leukemia (CML) in transformation (Aguiar et al., 1997). Etiology Only 3 cases so far; 77-year old male (MDS-RA) and 71-year old female (MDS-R...
متن کاملCrystal structure of 1,2-bis[(2-tert-butylphenyl)imino]ethane
The whole molecule of the title compound, C22H28N2, (I), is generated by inversion symmetry. The mol-ecule is rather similar to that of 2,3-bis-[(2-tert-butyl-phen-yl)imino]-butane, (II), a di-imine ligand comprising similar structural features [Ferreira et al. (2006 ▶). Acta Cryst. E62, o4282-o4284]. Both ligands crystallize with the -N=C(R)-C(R)=N- group around an inversion centre, in a trans...
متن کاملCrystal structure of 2,4-di-tert-butyl-6-(hydroxymethyl)phenol
The title compound, C15H24O2, is an example of a phenol-based pendant-arm precursor. In the mol-ecule, the phenol hy-droxy group participates in an intra-molecular O-H⋯O hydrogen bond with the pendant alcohol group, forming an S(6) ring. This ring adopts a half-chair conformation. In the crystal, O-H⋯O hydrogen bonds connect mol-ecules related by the 31 screw axes, forming chains along the c ax...
متن کاملCrystal structure of 7,15-bis(4-tert-butylphenyl)-1,9-dimethylheptazethrene
The title compound, C50H44, 1, was synthesized as a derivative of hepta-zethrene bearing two methyl and two tert-butyl-phenyl substituents, respectively, at the 1,9- and 7,15-positions. The asymmetric unit consists of one half of the mol-ecule, which lies about an inversion centre. Albeit remotely located, the substituents contort the hepta-zethrene plane. The tert-butyl-phenyl substituents sta...
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ژورنال
عنوان ژورنال: Zeitschrift für Kristallographie - New Crystal Structures
سال: 1999
ISSN: 2197-4578,1433-7266
DOI: 10.1515/ncrs-1999-0208