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 |
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01.03.2019
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Abstract | 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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AbstractList | 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[28.4.0.04,9.013,18.021,26]tetratriaconta‐1(30),4(9),5,7,13,15,17,21,23,25,31,33‐dodecaene‐10,27‐dicarboxylate, C36H34N4O6Se4, and its precursor di‐tert‐butyl 2,2′‐[diselane‐1,2‐diylbis(2,1‐phenylene)]dicarbamate, C22H28N2O4Se2, 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 with one molecule in the unit cell (Z′ = ). It contains an 18‐membered macrocyclic ring with two diselenide linkages. In this macrocycle, there are two free and two protected amino groups. 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. |
Author | Singh, Harkesh B Butcher, Ray J Raju, Saravanan |
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Keywords | crystal structure diselenide linkage 18-membered diselenomacrocycle bis(2-aminophenyl) diselenide hydrolysis |
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Snippet | 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
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Title | Isolation and structure of an 18-membered macrocycle containing two diselenide linkages and its precursor |
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