Id |
Subject |
Object |
Predicate |
Lexical cue |
TextSentencer_T1 |
0-147 |
Sentence |
denotes |
Investigations of different carbohydrate anomers in copper(II) complexes with D-glucose, D-fructose, and D-galactose by Raman and EPR spectroscopy. |
TextSentencer_T2 |
148-384 |
Sentence |
denotes |
With the aim of verifying different carbohydrate anomers coordinated to copper(II) ions, some copper(II) complexes with D-glucose (Glc), D-fructose (Fru), and D-galactose (Gal) were prepared and investigated by spectroscopic techniques. |
TextSentencer_T3 |
385-503 |
Sentence |
denotes |
Their compositions were verified by elemental, ICP-AES and thermal analyses, in addition to conductivity measurements. |
TextSentencer_T4 |
504-728 |
Sentence |
denotes |
The compounds isolated were consistent with the formula Na2[Cu2(carbohydrate)3].8H2O and Na[Cu2(carbohydrate)3].6H2O for the aldoses Glc and Gal, respectively, and Na2[Cu3(carbohydrate)4].8H2O in the case of the ketose, Fru. |
TextSentencer_T5 |
729-892 |
Sentence |
denotes |
EPR spectra of these solids showed a rhombic environment around the metal center and suggested the presence of different anomers of the carbohydrates in each case. |
TextSentencer_T6 |
893-1085 |
Sentence |
denotes |
By Raman spectroscopy, it was possible to verify the predominance of the beta anomer of d-glucose in the corresponding copper complex, while in the free ligand the alpha anomer is predominant. |
TextSentencer_T7 |
1086-1316 |
Sentence |
denotes |
In the case of the analogous complex with d-galactose, the spectrum of the complex shows bands of both anomers (alpha and beta) in approximately the same relative intensities as those observed in the isolated free ligand spectrum. |
TextSentencer_T8 |
1317-1515 |
Sentence |
denotes |
On the other hand, for the complex with d-fructose a mixture of both furanose (five-membered ring) and pyranose (six-membered ring) structures was detected with prevalence of the furanose structure. |
TextSentencer_T9 |
1516-1787 |
Sentence |
denotes |
Based on variations in the relative intensities of characteristic Raman bands, the binding site for copper in the fructose ligand was identified as most likely the 1-CH2OH and the anomeric 1-OH, while in beta-D-glucose it is presumably the anomeric 1-OH and the O-5 atom. |
TextSentencer_T10 |
1788-1961 |
Sentence |
denotes |
These results indicated that EPR and Raman spectroscopy are suitable supporting techniques for the characterization of carbohydrate anomers coordinated to paramagnetic ions. |
T1 |
0-147 |
Sentence |
denotes |
Investigations of different carbohydrate anomers in copper(II) complexes with D-glucose, D-fructose, and D-galactose by Raman and EPR spectroscopy. |
T2 |
148-384 |
Sentence |
denotes |
With the aim of verifying different carbohydrate anomers coordinated to copper(II) ions, some copper(II) complexes with D-glucose (Glc), D-fructose (Fru), and D-galactose (Gal) were prepared and investigated by spectroscopic techniques. |
T3 |
385-503 |
Sentence |
denotes |
Their compositions were verified by elemental, ICP-AES and thermal analyses, in addition to conductivity measurements. |
T4 |
504-728 |
Sentence |
denotes |
The compounds isolated were consistent with the formula Na2[Cu2(carbohydrate)3].8H2O and Na[Cu2(carbohydrate)3].6H2O for the aldoses Glc and Gal, respectively, and Na2[Cu3(carbohydrate)4].8H2O in the case of the ketose, Fru. |
T5 |
729-892 |
Sentence |
denotes |
EPR spectra of these solids showed a rhombic environment around the metal center and suggested the presence of different anomers of the carbohydrates in each case. |
T6 |
893-1085 |
Sentence |
denotes |
By Raman spectroscopy, it was possible to verify the predominance of the beta anomer of d-glucose in the corresponding copper complex, while in the free ligand the alpha anomer is predominant. |
T7 |
1086-1316 |
Sentence |
denotes |
In the case of the analogous complex with d-galactose, the spectrum of the complex shows bands of both anomers (alpha and beta) in approximately the same relative intensities as those observed in the isolated free ligand spectrum. |
T8 |
1317-1515 |
Sentence |
denotes |
On the other hand, for the complex with d-fructose a mixture of both furanose (five-membered ring) and pyranose (six-membered ring) structures was detected with prevalence of the furanose structure. |
T9 |
1516-1787 |
Sentence |
denotes |
Based on variations in the relative intensities of characteristic Raman bands, the binding site for copper in the fructose ligand was identified as most likely the 1-CH2OH and the anomeric 1-OH, while in beta-D-glucose it is presumably the anomeric 1-OH and the O-5 atom. |
T10 |
1788-1961 |
Sentence |
denotes |
These results indicated that EPR and Raman spectroscopy are suitable supporting techniques for the characterization of carbohydrate anomers coordinated to paramagnetic ions. |