Synthesis of new structurally constrained tetraaza macropolycyclic compounds containing two rigid bridges: Crystal structure and chemical properties of a copper(II) complex
- Authors
- Kang, Shin-Geol; Lee, Yun-Taek; Chun, Hyungphil; Kim, Kimoon
- Issue Date
- Jan-2014
- Publisher
- Elsevier BV
- Keywords
- Macropolycycles; Structurally constrained macrocycles; Bridged macrocycles; Crystal structure; Copper(II) complex
- Citation
- Inorganica Chimica Acta, v.409, pp.315 - 319
- Indexed
- SCIE
SCOPUS
- Journal Title
- Inorganica Chimica Acta
- Volume
- 409
- Start Page
- 315
- End Page
- 319
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/24101
- DOI
- 10.1016/j.ica.2013.09.018
- ISSN
- 0020-1693
- Abstract
- New topologically constrained tetraaza macropolycycles L-9, L-10, and L-11 containing two o-xylylene (-(CH2)C6H4(CH2)-) bridges have been prepared by the reaction of 1,2-bis(bromomethyl) benzene with 3,14-dimethyl-2,6,13,17-tetraazatricyclo[16.4.0.0(7.12)]docosane (L-1), 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane (L-2), or 2,5,5,7,9,12,12,14-octamethyl-1,4,8,11-tetraazacyclotetradecane (L-3). The macropolycycle L-9 readily reacts with Cu2+ ion to form [CuL9](2+) in wet methanol. However, L-10 and L-11 do not bind the metal ion in similar conditions. The Cu-N distances [2.048(4)-2.070(4)] and the ligand field strength of [CuL9](ClO4)(2) are considerably longer and weaker, respectively, than those of other related macropolycyclic copper(II) complexes containing two N-(CH2)(2)-N or N-(CH2)(3)-N bridges. The copper(II) complex is extremely stable even in low pH and quite inert against ligand substitution with CN ion. (C) 2013 Elsevier B.V. All rights reserved.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/24101)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.