@article {POC:POC3403,
	title = {Designing kinetically stable aryltrifluoroborates as 18F-capture agents for PET imaging},
	journal = {Journal of Physical Organic Chemistry},
	volume = {28},
	number = {3},
	year = {2015},
	pages = {210{\textendash}214},
	abstract = {One-step 18F-radiolabeling of peptides and other large biomolecules has been challenged by a critical gap in chemical compatibility between fluoride anion, which is unreactive as a nucleophile in water, and large biomolecules such as peptides that are insoluble in dry solvents. Traditionally, this disparity has been overcome through the preliminary synthesis of an 18F-labeled radioprosthetic group that is appended to peptides following at least one additional step. Ideally, however, peptides should be labeled in a single aqueous step. Hence, we proposed the use of arylboronic acids as captors of aqueous 18F-fluoride ion to simplify the radiosynthesis of 18F-aryltrifluoroborate bioconjugates. Yet, the use of aryltrifluoroborates as radioprosthetic groups can only be considered if kinetically stable ones can be designed. Herein, we discuss the kinetic and thermodynamic parameters review our previous use of a Hammett analysis that can inform the design of kinetically stable~18F-labeled aryltrifluoroborates for use as novel radioprosthetic groups. Copyright {\textcopyright} 2014 John Wiley \& Sons, Ltd.},
	keywords = {aryltrifluoroborate, FLUORIDE, hammett, PET imaging, solvolysis},
	issn = {1099-1395},
	doi = {10.1002/poc.3403},
	url = {http://dx.doi.org/10.1002/poc.3403},
	author = {Liu, Zhibo and Li, Ying and Ting, Richard and Perrin, David M.}
}
@article {2288,
	title = {Substituent effects on aryltrifluoroborate solvolysis in water: Implications for Suzuki-Miyaura coupling and the design of stable F-18-labeled aryltrifluoroborates for use in PET imaging},
	journal = {Journal of Organic Chemistry},
	volume = {73},
	number = {12},
	year = {2008},
	note = {ISI Document Delivery No.: 313RGTimes Cited: 17Cited Reference Count: 41Ting, Richard Harwig, Curtis W. Lo, Justin Li, Ying Adam, Michael J. Ruth, Thomas J. Perrin, David M.},
	month = {Jun},
	pages = {4662-4670},
	type = {Article},
	abstract = {Whereas electron withdrawing substituents retard the rate of aryltrifluoroborate solvolysis, electron-donating groups enhance it. Herein is presented a Hammett analysis of the solvolytic lability of aryltrifluoroborates where log(k(solv)) values correlate to sigma values with a rho value of approximately -1. This work provides a predictable rubric for tuning the reactivity of boron for several uses including F-18-labeled PET reagents and has mechanistic implications for ArBF3-enhanced ligandless metal-mediated cross coupling reactions with aryltrifluoroborates.},
	keywords = {AMINO-ACIDS, AROMATIC SUBSTITUTION, CHEMISTRY, CHYMOTRYPSIN, CONSTANTS, FLUORIDE, HYDROLYSIS, ORGANOBORON COMPOUNDS, POTASSIUM ARYL, TRIFLUOROMETHYL GROUP},
	isbn = {0022-3263},
	url = {<Go to ISI>://000256757100038},
	author = {Ting, R. and Harwig, C. W. and Lo, J. and Li, Y. and Adam,Michael J. and Ruth, T. J. and Perrin,David M.}
}
@article {2288,
	title = {Substituent effects on aryltrifluoroborate solvolysis in water: Implications for Suzuki-Miyaura coupling and the design of stable F-18-labeled aryltrifluoroborates for use in PET imaging},
	journal = {Journal of Organic Chemistry},
	volume = {73},
	number = {12},
	year = {2008},
	note = {ISI Document Delivery No.: 313RGTimes Cited: 17Cited Reference Count: 41Ting, Richard Harwig, Curtis W. Lo, Justin Li, Ying Adam, Michael J. Ruth, Thomas J. Perrin, David M.},
	month = {Jun},
	pages = {4662-4670},
	type = {Article},
	abstract = {Whereas electron withdrawing substituents retard the rate of aryltrifluoroborate solvolysis, electron-donating groups enhance it. Herein is presented a Hammett analysis of the solvolytic lability of aryltrifluoroborates where log(k(solv)) values correlate to sigma values with a rho value of approximately -1. This work provides a predictable rubric for tuning the reactivity of boron for several uses including F-18-labeled PET reagents and has mechanistic implications for ArBF3-enhanced ligandless metal-mediated cross coupling reactions with aryltrifluoroborates.},
	keywords = {AMINO-ACIDS, AROMATIC SUBSTITUTION, CHEMISTRY, CHYMOTRYPSIN, CONSTANTS, FLUORIDE, HYDROLYSIS, ORGANOBORON COMPOUNDS, POTASSIUM ARYL, TRIFLUOROMETHYL GROUP},
	isbn = {0022-3263},
	url = {<Go to ISI>://000256757100038},
	author = {Ting, R. and Harwig, C. W. and Lo, J. and Li, Y. and Adam,Michael J. and Ruth, T. J. and Perrin,David M.}
}
@article {4491,
	title = {Synthesis and structure of [{Mo(CO)(4)}(2)(cis-mu-F2SbF4)(3)](x)[Sb2F11](x): An ionic coordination polymer},
	journal = {Inorganic Chemistry},
	volume = {38},
	number = {16},
	year = {1999},
	note = {ISI Document Delivery No.: 226JVTimes Cited: 16Cited Reference Count: 35},
	month = {Aug},
	pages = {3684-3687},
	type = {Article},
	abstract = {{The oxidation of molybdenum hexacarbonyl, Mo(CO)(6), by antimony(V) fluoride, SbF5, at 60 degrees C in an excess of liquid SbF5, produces polymeric [{Mo(CO)(4)}(2)(cis-mu-F2SbF4)(3)](x)[Sb2F11](x) as the main product. Recrystallization from HF-SbF5 produces orange prismatic crystals, suitable for a single-crystal X-ray diffraction study. Crystals of [{Mo(CO)(4)}(2)(cis-mu-F2SbF4)(3)](x)[Sb2F11](x) are monoclinic, space group P2(1)/c (No. 14)},
	keywords = {ANIONS, COMPLEXES, CRYSTAL, FLUORIDE, FLUOROSULFATE, MOLYBDENUM, UNDECAFLUORODIANTIMONATE(V)},
	isbn = {0020-1669},
	url = {<Go to ISI>://000082017600016},
	author = {Brochler, R. and Freidank, D. and Bodenbinder, M. and Sham, I. H. T. and Willner, H. and Rettig, S. J. and Trotter, J. and Aubke, F.}
}
@article {4491,
	title = {Synthesis and structure of [{Mo(CO)(4)}(2)(cis-mu-F2SbF4)(3)](x)[Sb2F11](x): An ionic coordination polymer},
	journal = {Inorganic Chemistry},
	volume = {38},
	number = {16},
	year = {1999},
	note = {ISI Document Delivery No.: 226JVTimes Cited: 16Cited Reference Count: 35},
	month = {Aug},
	pages = {3684-3687},
	type = {Article},
	abstract = {{The oxidation of molybdenum hexacarbonyl, Mo(CO)(6), by antimony(V) fluoride, SbF5, at 60 degrees C in an excess of liquid SbF5, produces polymeric [{Mo(CO)(4)}(2)(cis-mu-F2SbF4)(3)](x)[Sb2F11](x) as the main product. Recrystallization from HF-SbF5 produces orange prismatic crystals, suitable for a single-crystal X-ray diffraction study. Crystals of [{Mo(CO)(4)}(2)(cis-mu-F2SbF4)(3)](x)[Sb2F11](x) are monoclinic, space group P2(1)/c (No. 14)},
	keywords = {ANIONS, COMPLEXES, CRYSTAL, FLUORIDE, FLUOROSULFATE, MOLYBDENUM, UNDECAFLUORODIANTIMONATE(V)},
	isbn = {0020-1669},
	url = {<Go to ISI>://000082017600016},
	author = {Brochler, R. and Freidank, D. and Bodenbinder, M. and Sham, I. H. T. and Willner, H. and Rettig, S. J. and Trotter, J. and Aubke, F.}
}
@article {4232,
	title = {Conjugate Bronsted-Lewis superacids in fluorosulfuric acid - Hammett acidity function and electrical conductivity studies of Ta(V), Nb(V) and Sb(V) Lewis acids},
	journal = {Journal of Fluorine Chemistry},
	volume = {89},
	number = {1},
	year = {1998},
	note = {ISI Document Delivery No.: ZJ736Times Cited: 0Cited Reference Count: 41},
	month = {Apr},
	pages = {117-123},
	type = {Article},
	abstract = {{Conjugate Bronsted-Lewis superacids in fluorosulfuric acid are studied by two techniques. Hammett acidity function studies on HSO3F-Ta(SO3F)(5) in the concentration range of 0-3.4 mol\% of Lewis acid are reported. The conjugate system HSO3F-Ta(SO3F)(5) shows in this range of Lewis acid concentration acidities equal or higher to those of HSO3F-3SO(3)-SbF5, which is commonly assumed to be the strongest conjugate protonic acid. Electrical conductivities of the neat Lewis acids of the type MFn(SO3F)(5-n)},
	keywords = {BEHAVIOR, BIS(FLUOROSULFATE), Bronsted-Lewis, conjugate, CONVENIENT, FLUORIDE, GOLD(III) FLUOROSULFATE, H2SO4-HSO3F, ION, MOLECULAR-STRUCTURES, protonic acid, SYSTEMS, TETRAKIS(FLUOROSULFATO)AURATE(III)},
	isbn = {0022-1139},
	url = {<Go to ISI>://000073247800022},
	author = {Cicha, W. V. and Zhang, D. L. and Aubke, F.}
}
@article {3866,
	title = {Superacid anions: Crystal and molecular structures of oxonium undecafluorodiantimonate(V), [H3O][Sb2F11], cesium fluorosulfate, CsSO3F, cesium hydrogen bis(fluorosulfate), Cs[H(SO3F)(2)], cesium tetrakis(fluorosulfato)aurate(III), Cs[Au(SO3F)(4)], cesium},
	journal = {Inorganic Chemistry},
	volume = {35},
	number = {21},
	year = {1996},
	note = {ISI Document Delivery No.: VL611Times Cited: 31Cited Reference Count: 90},
	month = {Oct},
	pages = {6113-6130},
	type = {Article},
	abstract = {{In order to understand the reasons for the low nucleophilicity of superacid anions, a systematic, comparative study of six superacid anions by single-crystal X-ray diffraction is undertaken. From magic acid, HSO3F-SbF5, surprisingly, single crystals of oxonium undecafluorodiantimonate(V), [H3O][Sb2F11], 1, are obtained. In the remaining five salts the cesium ion, Cs+, is used as the countercation. Both CsSO3F, 2, and its solvate Cs[H(SO3F)(2)], 3, are derived from the Bronsted superacid HSO3F. The conjugate noble metal superacid systems HSO3F-Au(SO3F)(3) and HSO3F-Pt(SO3F)(4) provide cesium tetrakis(fluorosulfato)aurate(III) Cs[Au(SO3F)(4)], 4, and cesium hexakis (fluorosulfato)platinate(IV) Cs-2[Pt(SO3F)(6)], 5. Cesium hexakis (fluorosulfato)antimonate(V) Cs[Sb(SO3F)(6)], 6, whose synthesis is described here in detail, provides evidence for the possible existence of a new conjugate superacid system, HSO3F-Sb(SO3F)(5). Crystals of [H3O][Sb2F11] (1, H3F11OSb2) are orthorhombic},
	keywords = {ACIDS, BEHAVIOR, CATIONS, CONSTANTS, DERIVATIVES, FLUORIDE, FLUOROSULFATE, GOLD(III), TRIS(FLUOROSULFATE), VIBRATIONAL-SPECTRA, WEAKLY COORDINATING ANIONS},
	isbn = {0020-1669},
	url = {<Go to ISI>://A1996VL61100024},
	author = {Zhang, D. L. and Rettig, S. J. and Trotter, J. and Aubke, F.}
}
@article {3866,
	title = {Superacid anions: Crystal and molecular structures of oxonium undecafluorodiantimonate(V), [H3O][Sb2F11], cesium fluorosulfate, CsSO3F, cesium hydrogen bis(fluorosulfate), Cs[H(SO3F)(2)], cesium tetrakis(fluorosulfato)aurate(III), Cs[Au(SO3F)(4)], cesium},
	journal = {Inorganic Chemistry},
	volume = {35},
	number = {21},
	year = {1996},
	note = {ISI Document Delivery No.: VL611Times Cited: 31Cited Reference Count: 90},
	month = {Oct},
	pages = {6113-6130},
	type = {Article},
	abstract = {{In order to understand the reasons for the low nucleophilicity of superacid anions, a systematic, comparative study of six superacid anions by single-crystal X-ray diffraction is undertaken. From magic acid, HSO3F-SbF5, surprisingly, single crystals of oxonium undecafluorodiantimonate(V), [H3O][Sb2F11], 1, are obtained. In the remaining five salts the cesium ion, Cs+, is used as the countercation. Both CsSO3F, 2, and its solvate Cs[H(SO3F)(2)], 3, are derived from the Bronsted superacid HSO3F. The conjugate noble metal superacid systems HSO3F-Au(SO3F)(3) and HSO3F-Pt(SO3F)(4) provide cesium tetrakis(fluorosulfato)aurate(III) Cs[Au(SO3F)(4)], 4, and cesium hexakis (fluorosulfato)platinate(IV) Cs-2[Pt(SO3F)(6)], 5. Cesium hexakis (fluorosulfato)antimonate(V) Cs[Sb(SO3F)(6)], 6, whose synthesis is described here in detail, provides evidence for the possible existence of a new conjugate superacid system, HSO3F-Sb(SO3F)(5). Crystals of [H3O][Sb2F11] (1, H3F11OSb2) are orthorhombic},
	keywords = {ACIDS, BEHAVIOR, CATIONS, CONSTANTS, DERIVATIVES, FLUORIDE, FLUOROSULFATE, GOLD(III), TRIS(FLUOROSULFATE), VIBRATIONAL-SPECTRA, WEAKLY COORDINATING ANIONS},
	isbn = {0020-1669},
	url = {<Go to ISI>://A1996VL61100024},
	author = {Zhang, D. L. and Rettig, S. J. and Trotter, J. and Aubke, F.}
}
@article {3456,
	title = {HYPERFINE CONSTANTS OF BROMINE AND IODINE MONOFLUORIDE},
	journal = {Journal of Chemical Physics},
	volume = {103},
	number = {2},
	year = {1995},
	note = {ISI Document Delivery No.: RH105Times Cited: 49Cited Reference Count: 67},
	month = {Jul},
	pages = {577-583},
	type = {Article},
	keywords = {BRF, DIODE-LASER SPECTRUM, DIPOLE-MOMENT, DISCHARGE, electronic state, F-19 SPIN ROTATION, FLUORIDE, FOURIER-TRANSFORM SPECTROMETER, GROUND, IF, QUADRUPOLE COUPLING-CONSTANTS},
	isbn = {0021-9606},
	url = {<Go to ISI>://A1995RH10500011},
	author = {Muller, H. S. P. and Gerry, M. C. L.}
}
@article {3340,
	title = {STRUCTURE, HARMONIC FORCE-FIELD AND HYPERFINE COUPLING-CONSTANTS OF NITROSYL CHLORIDE},
	journal = {Journal of the Chemical Society-Faraday Transactions},
	volume = {91},
	number = {19},
	year = {1995},
	note = {ISI Document Delivery No.: TA547Times Cited: 8Cited Reference Count: 43},
	month = {Oct},
	pages = {3347-3355},
	type = {Article},
	abstract = {The pure rotational spectra of five isotopic species of nitrosyl chloride were measured using a cavity pulsed microwave Fourier-transform spectrometer. Some a-type transitions of all five isotopomers, and some weak b-type transitions of four of these isotopomers were measured in the 4-26 GHz frequency range. Precise values for the rotational constants and the quartic centrifugal distortion constants were obtained. The rotational constants were used in structure determinations and the centrifugal distortion constants were used in a refinement of the harmonic general valence force field. A harmonic central valence force field was also calculated. Hyperfine structure in these transitions arising from quadrupole and spin-rotation coupling interactions was also observed. Diagonal and off-diagonal quadrupole coupling constants and diagonal spin-rotation coupling constants of both the chlorine and nitrogen nuclei were determined. The principal quadrupole coupling constants were evaluated and used to calculate the approximate ionic character of the N-Cl bond. The spin-rotational coupling constants were used to calculate the diamagnetic shielding factor for the nitrogen nucleus; the magnitude of this value indicates a fairly ionic N-Cl bond.},
	keywords = {CL-35, EQUILIBRIUM STRUCTURE, FLUORIDE, INFRARED-SPECTRA, MILLIMETER-WAVE, MOLECULAR-STRUCTURE, N-14, PARAMETERS, SPECTROSCOPY},
	isbn = {0956-5000},
	url = {<Go to ISI>://A1995TA54700004},
	author = {Gatehouse, B. and Muller, H. S. P. and Heineking, N. and Gerry, M. C. L.}
}
@article {3582,
	title = {SYNTHESIS AND CRYSTAL AND MOLECULAR-STRUCTURE OF CESIUM HEXAKIS(FLUOROSULFATO)ANTIMONATE(V) AND ITS ROLE IN THE HSO3F-SB(SO3F)(5) CONJUGATE SUPERACID SYSTEM},
	journal = {Inorganic Chemistry},
	volume = {34},
	number = {9},
	year = {1995},
	note = {ISI Document Delivery No.: QV824Times Cited: 4Cited Reference Count: 20},
	month = {Apr},
	pages = {2269-2270},
	type = {Article},
	abstract = {The previously unknown hexakis(fluorosulfato)antimonate(V) anion has been obtained as the cesium salt by oxidation of antimony with bis(fluorosulfuryl) peroxide, S2O6F2, in fluorosulfuric acid in the presence of CsSO3F. The highly symmetric anion has crystallogarphic (exact) S-6 symmetry and features unusually short S-O (1.397(2) Angstrom) and S-F (1.486(3) Angstrom), bonds which suggests its use as a very weakly coordinating anion in superacid solution or in the solid state.},
	keywords = {FLUORIDE},
	isbn = {0020-1669},
	url = {<Go to ISI>://A1995QV82400004},
	author = {Zhang, D. L. and Rettig, S. J. and Trotter, J. and Aubke, F.}
}
@article {3582,
	title = {SYNTHESIS AND CRYSTAL AND MOLECULAR-STRUCTURE OF CESIUM HEXAKIS(FLUOROSULFATO)ANTIMONATE(V) AND ITS ROLE IN THE HSO3F-SB(SO3F)(5) CONJUGATE SUPERACID SYSTEM},
	journal = {Inorganic Chemistry},
	volume = {34},
	number = {9},
	year = {1995},
	note = {ISI Document Delivery No.: QV824Times Cited: 4Cited Reference Count: 20},
	month = {Apr},
	pages = {2269-2270},
	type = {Article},
	abstract = {The previously unknown hexakis(fluorosulfato)antimonate(V) anion has been obtained as the cesium salt by oxidation of antimony with bis(fluorosulfuryl) peroxide, S2O6F2, in fluorosulfuric acid in the presence of CsSO3F. The highly symmetric anion has crystallogarphic (exact) S-6 symmetry and features unusually short S-O (1.397(2) Angstrom) and S-F (1.486(3) Angstrom), bonds which suggests its use as a very weakly coordinating anion in superacid solution or in the solid state.},
	keywords = {FLUORIDE},
	isbn = {0020-1669},
	url = {<Go to ISI>://A1995QV82400004},
	author = {Zhang, D. L. and Rettig, S. J. and Trotter, J. and Aubke, F.}
}
@article {3124,
	title = {THE SYNTHESIS AND VIBRATIONAL-SPECTRA OF FLUOROSULFATE DERIVATIVES OF TITANIUM, ZIRCONIUM AND HAFNIUM},
	journal = {Journal of Fluorine Chemistry},
	volume = {68},
	number = {3},
	year = {1994},
	note = {ISI Document Delivery No.: PE264Times Cited: 3Cited Reference Count: 36},
	month = {Sep},
	pages = {239-248},
	type = {Article},
	abstract = {The syntheses of the binary fluorosulfates, Zr(SO3F), and Hf(SO3F)4, by oxidation of the corresponding metal powders with bis(fluorosulfuryl) peroxide, S2O6F2, in fluorosulfuric acid, HSO3F, are described. The resulting products are white hygroscopic solids which are not sufficiently soluble in HSO3F to allow electrical conductivity and NMR studies or Hammett acidity function (H-0) determinations in order to evaluate their use as Lewis acids in conjugate superacid systems. Oxidation of titanium under similar conditions resulted in the formation of a greenish-yellow resin-like material of limited thermal stability with the approximate composition Ti(SO3F)4. However, infrared spectra indicated the presence of small amounts of HSO3F. In addition, the solvolysis of ZrCl4 in an excess of HSO3F at 25-degrees-C has been investigated as a potential route to Zr(SO3F)4. The results indicate that short reaction times of 1-2 d yielded incompletely substituted products of the approximate composition ZrClx(SO3F)4-x (x = 0.22), while prolonged reaction times of 3-4 weeks gave rise to partially decomposed materials of approximate composition ZrO0.5F1.5(SO3F)1.5. The ability of all three tetrakis(fluorosulfato) metallates to act as SO3F- ion acceptors is evident from the isolation of thermally stable salts of the composition Cs2[M(SO3F)6] (M = Ti, Zr or Hf) when the metal oxidation was carried out in the presence of 2 mol equiv. of CsSO3F. All the materials were characterized by their vibrational spectra, which are extremely similar and closely resemble those of previously reported cesium hexakis(fluorosulfato) metallates.},
	keywords = {ACIDS, FLUORIDE, GOLD, GOLD(III) FLUOROSULFATE, ION, SUPERACID SYSTEMS},
	isbn = {0022-1139},
	url = {<Go to ISI>://A1994PE26400003},
	author = {Mistry, F. and Aubke, F.}
}
