2002
DOI: 10.1016/s0927-7757(02)00177-2
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Aggregation of fullerene C60 in N-methylpyrrolidone

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Cited by 60 publications
(42 citation statements)
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“…The ZnPc in NMP has a strong Q band absorption with a peak at 670 nm and the NMP solution of C 60 did not exhibit the characteristic peak at 340 nm 8 as shown in Figure 1B, probably due to aggregation of C 60 in NMP. 9 In Figure 1A, the absorption spectrum of mixed C 60 and ZnPc solution (c) is compared to mathematic addition (d) of the two respective spectra. It is observed that a charge-transfer (CT) absorption band appears around 700-800 nm, which shall be ascribed to the π complex formed between the C 60 and phthalocyanine.…”
Section: Resultsmentioning
confidence: 99%
“…The ZnPc in NMP has a strong Q band absorption with a peak at 670 nm and the NMP solution of C 60 did not exhibit the characteristic peak at 340 nm 8 as shown in Figure 1B, probably due to aggregation of C 60 in NMP. 9 In Figure 1A, the absorption spectrum of mixed C 60 and ZnPc solution (c) is compared to mathematic addition (d) of the two respective spectra. It is observed that a charge-transfer (CT) absorption band appears around 700-800 nm, which shall be ascribed to the π complex formed between the C 60 and phthalocyanine.…”
Section: Resultsmentioning
confidence: 99%
“…Окрiм високої розчинностi фу-леренiв, NМП вважається абсолютно розчинним у водi, що є важливим пiд час приготування сумi-шей фулеренiв з водою та NМП [28]. Формуван-ня стабiльних агрегатiв при перенесеннi фулерену з NМП у воду досягається, швидше за все, зав-дяки утворенню донорно-акцепторних комплексiв мiж молекулами фулеренiв С 60 та NМП [29]. Вра-ховуючи це, дослiдження процесiв агрегацiї С 70 були проведенi як при додаваннi NМП до сумiшi С 70 /толуол, так i навпаки, шляхом розведення си-стеми С 70 /NМП толуолом.…”
Section: вступunclassified
“…Фактично, ми спо-стерiгаємо вибiркове накопичення молекул NМП в найближчiй сольватнiй оболонцi С 70 . Враховую-чи бiльшу полярнiсть NМП порiвняно з толуолом, можна зробити висновок про те, що ця сольвата-цiя викликана, насамперед, формуванням компле-ксiв С 70 -NМП [29], у яких фулерен вiдiграє роль акцептора електронiв електровiд'ємних атомiв, що входять до складу NМП. Ранiше про формування таких комплексiв було припущено при дослiдженнi спектрiв абсорбцiї сумiшей С 60 /NМП та їх розчи-нiв [38,39].…”
Section: висновокunclassified
“…One of the most interesting phenomena studied is the cluster formation of fullerenes C 60 and C 70 in solutions. The large, stable clusters were detected in nitrogen containing solvents (aggregates size up to 500 nm) [5][6][7]. In addition to cluster growth, solvatochromic effects are observed, which are associated with complex formation between fullerene and solvent molecules [7][8][9].…”
Section: Introductionmentioning
confidence: 99%