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Volumn 3, Issue 2, 1997, Pages 300-307

Extended-core discotic liquid crystals based on the lntramolecular H-bonding in N-acylated 2,2'-bipyridine-3,3'-diamine moieties

Author keywords

bipyridines; discotic liquid crystals; hydrogen bonds; liquid crystals; mesophases

Indexed keywords


EID: 0030993486     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/chem.19970030220     Document Type: Article
Times cited : (141)

References (25)
  • 7
    • 33748216871 scopus 로고
    • e) A. Stabel, P. Herwig, K. Müllen, J. P. Rabe, Angew. Chem. 1995, 107, 1768; Angew. Chem. Int. Ed. Engl. 1995, 34, 1609;
    • (1995) Angew. Chem. Int. Ed. Engl. , vol.34 , pp. 1609
  • 13
    • 33748228224 scopus 로고
    • a) R. Kleppinger, C. P. Lillya, C. Yang, Angew. Chem. 1995, 107, 1762; Angew. Chem. Int. Ed. Engl. 1995, 34, 1637;
    • (1995) Angew. Chem. Int. Ed. Engl. , vol.34 , pp. 1637
  • 18
    • 0342661071 scopus 로고    scopus 로고
    • note
    • 2O was developed. Unfortunately, after coupling of the Boc-monoprotected 2,2′-bipyridine-3,3′-diamine with benzene-1,3,5-tricarbonyl trichloride and removal of the Boc group, a sparingly soluble triamine was obtained that could only be coupled with acid chloride 4b in low yields (5%).
  • 22
    • 0343967177 scopus 로고    scopus 로고
    • note
    • ho phase is present in both compounds.
  • 23
    • 0343095389 scopus 로고    scopus 로고
    • note
    • Compounds 1b-c also show a concentration effect. Owing to their high molecular weights, the effect of change in concentration by weight is less pronounced than for 1a. Therefore, only the effects of concentration and temperature variations relating to 1a are discussed.
  • 24
    • 0342661065 scopus 로고    scopus 로고
    • note
    • Full details dealing with gel formation will be published elsewhere.
  • 25
    • 0343531323 scopus 로고    scopus 로고
    • note
    • The differences in the clearing temperatures obtained by DSC and polarisation microscopy are due to inefficient heat transfer at high temperatures in the heating element of the microscope.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.