Isolation and structure of an 18-membered macrocycle containing two diselenide linkages and its precursor
The structures of the 18-membered diselenide-linked macrocycle 10,27-di-tert-butyl 11,28-dioxo-2,3,19,20-tetraselena-10,12,27,29-tetraazapentacyclo[28.4.0.0 .0 .0 ]tetratriaconta-1(30),4(9),5,7,13,15,17,21,23,25,31,33-dodecaene-10,27-dicarboxylate, C H N O Se , and its precursor di-tert-butyl 2,2...
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Published in | Acta crystallographica. Section C, Crystal structure communications Vol. 75; no. Pt 3; pp. 336 - 341 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
England
Wiley Subscription Services, Inc
01.03.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The structures of the 18-membered diselenide-linked macrocycle 10,27-di-tert-butyl 11,28-dioxo-2,3,19,20-tetraselena-10,12,27,29-tetraazapentacyclo[28.4.0.0
.0
.0
]tetratriaconta-1(30),4(9),5,7,13,15,17,21,23,25,31,33-dodecaene-10,27-dicarboxylate, C
H
N
O
Se
, and its precursor di-tert-butyl 2,2'-[diselane-1,2-diylbis(2,1-phenylene)]dicarbamate, C
H
N
O
Se
, are reported. The precusor to the macrocycle contains two tert-butyl phenylcarbamate arms connected to a diselenide group, with Se-C and Se-Se bond lengths of 1.914 (4) and 2.3408 (6) Å, respectively. The macrocycle resides on a crystallographic center of inversion in space group P-1 with one molecule in the unit cell (Z' = 1/2). It contains an 18-membered macrocyclic ring with two diselenide linkages. In this macrocycle, there are two free and two protected amino groups. |
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ISSN: | 0108-2701 2053-2296 1600-5759 |
DOI: | 10.1107/s2053229619002341 |