Crystal structure of tetra-ethyl 27,30-dioxo-7,12,20,25-tetra-tert-but-yl-3,16-dioxa-9,22,28,31-tetra-thia-hepta-cyclo-[21.3.1.1(1,5).1(4,8).1(10,14).1(14,18).1(17,21)]dotriaconta-4,6,8(29),10,12,17,19,21(32),23,25-deca-ene-2,2,15,15-tetra-carboxyl-ate

Mehmet Akkurt; Jerry P Jasinski; Shaaban K Mohamed; Omran A Omran; Mustafa R Albayati

doi:10.1107/S205698901501748X

Crystal structure of tetra-ethyl 27,30-dioxo-7,12,20,25-tetra-tert-but-yl-3,16-dioxa-9,22,28,31-tetra-thia-hepta-cyclo-[21.3.1.1(1,5).1(4,8).1(10,14).1(14,18).1(17,21)]dotriaconta-4,6,8(29),10,12,17,19,21(32),23,25-deca-ene-2,2,15,15-tetra-carboxyl-ate

Acta Crystallogr E Crystallogr Commun. 2015 Sep 26;71(Pt 10):o778-9. doi: 10.1107/S205698901501748X. eCollection 2015 Oct 1.

Authors

Mehmet Akkurt¹, Jerry P Jasinski², Shaaban K Mohamed³, Omran A Omran⁴, Mustafa R Albayati⁵

Affiliations

¹ Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
² Department of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA.
³ Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England ; Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
⁴ Medical Laboratory Department, College of Science, Majmaah University, 11932, Saudi Arabia ; Chemistry Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt.
⁵ Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq.

Abstract

The asymmetric unit of the title compound, C54H64O12S4, consists of one half of the mol-ecule, which is located on an inversion centre. The heterocyclic six-membered ring adopts a distorted envelope conformation with the spiro C atom as the flap. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds with an R (2) 2(14) motif, forming a chain along the b-axis direction.

Keywords: calixarenes; crystal structure; hydrogen bonding; macrocycles.