Chiral recognition of α-amino acids by an optically active (2 S,5 S,8 S,11 S)-2,5,8,11-tetraethyl cyclen cobalt(III) complex

Inorganic Chemistry

Volumn 50, Issue 1, 2011, Pages 4-6

  Tashiro, Shohei ^a   Ogura, Yasuyo ^a   Tsuboyama, Sei ^b   Tsuboyama, Kaoru ^b   Shionoya, Mitsuhiko ^a  

^a UNIVERSITY OF TOKYO   (Japan)

^b INST OF PHYS AND CHEMICAL RESEARCH   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

2 PHENYLGLYCINE; 2-PHENYLGLYCINE; COBALT; COORDINATION COMPOUND; DRUG DERIVATIVE; GLYCINE; HETEROCYCLIC COMPOUND; LEUCINE;

ARTICLE; CHEMICAL STRUCTURE; CHEMISTRY; METABOLISM; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; STEREOISOMERISM; X RAY CRYSTALLOGRAPHY;

COBALT; COORDINATION COMPLEXES; CRYSTALLOGRAPHY, X-RAY; GLYCINE; HETEROCYCLIC COMPOUNDS; LEUCINE; MAGNETIC RESONANCE SPECTROSCOPY; MODELS, MOLECULAR; STEREOISOMERISM;

EID: 78650711591     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic101760k     Document Type: Article

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39. For comparison with the case of rac -Phg, 2 equiv of d-or l -Phg was added to the solution.
40. 1H NMR. Therefore, we could observe the αH signal of complexed Phg as a singlet, and thereby the ratio of complexed d -Phg/ l -Phg was clearly estimated from the ratio of the values of integral.
41. 3, Z = 4, T = 93 K, λ(Mo Kα) = 0.710 75 Å, R1 = 0.0667 [ I > 2σ(I)], wR2 = 0.1677 (for all data), GOF = 0.985. CCDC reference number 779751.
42. 3, Z = 4, T = 93 K, λ(Mo Kα) = 0.710 75 Å, R1 = 0.0484 [ I > 2σ(I)], wR2 = 0.0990 (for all data), GOF = 1.056. CCDC reference number 779752.
43. 2, suggesting that the cationic parts of their crystal structures should be maintained in solution (see the Supporting Information).