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Evidence for C-H hydrogen bonding in salts of tert-butyl cation

Autor: Stoyanov, ES, Stoyanova, IV, Tham, FS, Reed, CA

Publikováno v: Angewandte Chemie (International ed. in English), vol 51, iss 36
Stoyanov, ES; Stoyanova, IV; Tham, FS; & Reed, CA. (2012). Evidence for C-H hydrogen bonding in salts of tert-butyl cation. Angewandte Chemie-International Edition, 51(36), 9149-9151. doi: 10.1002/anie.201203958. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/7g54z6ct

Environmentally sensitive: A combination of C-H⋯·anion hydrogen bonding and hyperconjugative charge delocalization explains the sensitivity of the IR spectrum of the tert-butyl cation to its anion (see high-resolution X-ray structure with a CHB11C

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R3E+ carborane salts of the heavier group 14 elements: E = Ge, Sn, and Pb

Autor: Wright, JH, Mueck, GW, Tham, FS, Reed, CA

Publikováno v: Wright, JH; Mueck, GW; Tham, FS; & Reed, CA. (2010). R3E+ carborane salts of the heavier group 14 elements: E = Ge, Sn, and Pb. Organometallics, 29(18), 4066-4070. doi: 10.1021/om100662r. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/8z2984bm

The synthetic and structural chemistry of catalytically useful trialkylsilylium salts with weakly coordinating carborane anions, R 3Si(CHB11X11), has been extended to the heavier group 14 elements. Et3Ge(CHB11H5Br 5) was prepared from Et3GeH and trit

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Superacidity of boron acids H2(B12X12)(X = Cl, Br)

Autor: Avelar, A, Tham, FS, Reed, CA

Publikováno v: Avelar, A; Tham, FS; & Reed, CA. (2009). Superacidity of boron acids H2(B12X12)(X = Cl, Br). Angewandte Chemie-International Edition, 48(19), 3491-3493. doi: 10.1002/anie.200900214. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/0vh8x74t

Acid remarks: The anhydrous diprotic boron acids H2(B 12X12) (X=Cl, Br; see picture, B orange, X green) are the first examples of diprotic superacids and may be the strongest acids yet isolated. Both protons protonate benzene to give benzenium ion sa

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Synthesis and structure of the coordinatively unsaturated boron subphthalocyanine cation, [B(SubPc)]+

Autor: Kato, T, Tham, FS, Boyd, PDW, Reed, CA

Publikováno v: Kato, T; Tham, FS; Boyd, PDW; & Reed, CA. (2006). Synthesis and structure of the coordinatively unsaturated boron subphthalocyanine cation, [B(SubPc)]+. Heteroatom Chemistry, 17(3), 209-216. doi: 10.1002/hc.20223. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/0zn6j65t

The boron subphthalocyanine cation, B(SubPc)+, has been prepared as a salt of a weakly coordinating carborane anion, CHB11Me 5Br6-, by a metathesis reaction of Et 3Si(CHB11Me5Br6) with B(SubPc)Cl. The separation of the cation and anion in the X-ray s

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Novel weak coordination to silylium ions: formation of nearly linear Si-H-Si bonds

Autor: Hoffmann, SP, Kato, T, Tham, FS, Reed, CA

Publikováno v: Chemical communications (Cambridge, England), vol 0, iss 7
Hoffmann, SP; Kato, T; Tham, FS; & Reed, CA. (2006). Novel weak coordination to silylium ions: Formation of nearly linear Si-H-Si bonds. Chemical Communications, (7), 767-769. doi: 10.1039/b511344j. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/8s05d16t

The weakly coordinating carborane anion in ion-like trialkylsilyl species R3Si(CHB11Cl11) can be displaced by nucleophiles as weak as ortho-dichlorobenzene, SO2and trialkylsilanes, the latter forming nearly linear hydride bridges in R3Si-H-SiR3+catio

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Tapes, sheets, and prisms. Identification of the weak C-F interactions that steer fullerene-porphyrin cocrystallization

Autor: Hosseini, A, Hodgson, MC, Tham, FS, Reed, CA, Boyd, PDW

Publikováno v: Hosseini, A; Hodgson, MC; Tham, FS; Reed, CA; & Boyd, PDW. (2006). Tapes, sheets, and prisms. Identification of the weak C-F interactions that steer fullerene-porphyrin cocrystallization. Crystal Growth and Design, 6(2), 397-403. doi: 10.1021/cg050352n. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/1xc8d5gp
Crystal Growth and Design, vol 6, iss 2

Tetra(pentafluorophenyl)porphyrin (H2TPFPP) has been cocrystallized with C60 from arene solvents to give H 2TPFPP·C60, 1, H2TPFPP·C 60·8Benzene, 3, and 3H2TPFPP·2C 60·6Toluene, 4. Their X-ray structures have been determined to identify the supra

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The structure of the H3O+ hydronium ion in benzene

Autor: Stoyanov, ES, Hoffmann, SP, Kim, KC, Tham, FS, Reed, CA

Publikováno v: Stoyanov, ES; Hoffmann, SP; Kim, KC; Tham, FS; & Reed, CA. (2005). The structure of the H3O+ hydronium ion in benzene. Journal of the American Chemical Society, 127(21), 7664-7665. doi: 10.1021/ja050401k. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/30k253n8

Infrared, X-ray structural, 1H NMR, and computational evidence for π-solvation of H3O+ by benzene molecules is presented. A salt with a discrete [H3O·3benzene]+ cation can be isolated using a very weakly interacting carborane counterion, CHB11Cl11-

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Porphyrin - Fullerene host - Guest chemistry [1]

Autor: Sun, D, Tham, FS, Reed, CA, Chaker, L, Burgess, M, Boyd, PDW

Publikováno v: Journal of the American Chemical Society, vol 122, iss 43
Sun, D; Tham, FS; Reed, CA; Chaker, L; Burgess, M; & Boyd, PDW. (2000). Porphyrin-Fullerene host-Guest chemistry [1]. Journal of the American Chemical Society, 122(43), 10704-10705. doi: 10.1021/ja002214m. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/5kt9b5kq

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Selective supramolecular porphyrin/fullerene interactions

Autor: Boyd, PDW, Hodgson, MC, Rickard, CEF, Oliver, AG, Chaker, L, Brothers, PJ, Bolskar, RD, Tham, FS, Reed, CA

Publikováno v: Journal of the American Chemical Society, vol 121, iss 45
Boyd, PDW; Hodgson, MC; Rickard, CEF; Oliver, AG; Chaker, L; Brothers, PJ; et al.(1999). Selective supramolecular porphyrin/fullerene interactions. Journal of the American Chemical Society, 121(45), 10487-10495. doi: 10.1021/ja992165h. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/5tp8m4fx

Naturally assembling cocrystallates of C60 and C70 fullerenes with tetraphenylporphyrins (H2TPP · C60 · 3 toluene, 1; H2T(3,5-dibutyl)PP · C60, 2; H2T(3,5-dimethyl)PP · 1.5C60 · 2 toluene, 3; H2T(piv)PP · C60, 4; H2T(3,5-dimethyl)PP · C70 · 4

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