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Freebase
Known as:
Metaweb Query Language
, Free basing
, MQL
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Freebase was a large collaborative knowledge base consisting of data composed mainly by its community members. It was an online collection of…
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16px|favicon of MusicBrainzMusicBrainz
Application programming interface
BabelNet
Collective intelligence
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Papers overview
Semantic Scholar uses AI to extract papers important to this topic.
2018
2018
Repartitioning of the ComplexWebQuestions Dataset
Alon Talmor
,
Jonathan Berant
arXiv.org
2018
Corpus ID: 50785701
Recently, Talmor and Berant (2018) introduced ComplexWebQuestions - a dataset focused on answering complex questions by…
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2012
2012
Optical response of carbon nanotubes functionalized with (free-base, Zn) porphyrins, and phthalocyanines: A DFT study
J. Correa
,
W. Orellana
2012
Corpus ID: 62896715
We use density-functional theory calculations to study the stability, electronic, and optical properties of free-base and Zn…
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Highly Cited
2008
Highly Cited
2008
Nonlinear optical and optical limiting studies of alkoxy phthalocyanines in solutions studied at 532 nm with nanosecond pulse excitation
N. Venkatram
,
D. Narayana Rao
,
L. Giribabu
,
Venugopal Rao Soma
2008
Corpus ID: 51960041
We report our results on the nonlinear optical and optical limiting properties of two alkoxy phthalocyanines namely 2,3,9,10,16…
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1999
1999
Selective extraction of ephedrine fromEphedra sinica using mixtures of CO2, diethylamine, and methanol
Y. Choi
,
J. Kim
,
Y. Kim
,
K. Yoo
1999
Corpus ID: 59401783
SummaryThe effect of modifiers has been investigated on the SFE efficiencies of ephedrine derivatives (e. g. methylephedrine…
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1998
1998
SAC-CI Study on the Excited and Ionized States of Free-Base Porphin: Rydberg Excited States and Effect of Polarization and Rydberg Functions
Y. Tokita
,
and J. Hasegawa
,
H. Nakatsuji
1998
Corpus ID: 43603525
The ground, excited, and ionized states of free-base porphin (FBP) are reinvestigated by the SAC (symmetry-adapted cluster)/SAC…
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1998
1998
Effect of Protonation−Deprotonation Processes on the Electrooptical Properties of Bipyridine-Containing Poly(p-phenylene−vinylene) Derivatives
Y. Eichen
,
G. Nakhmanovich
,
V. Gorelik
,
O. Epshtein
,
J. Poplawski
,
E. Ehrenfreund
1998
Corpus ID: 59581745
New electroluminescent, PPV-like, conjugated polymers containing bipyridylene−vinylene subunits were prepared and characterized…
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Highly Cited
1981
Highly Cited
1981
Solution Phase Synthesis of Alamethicin I
R. Nagaraj
,
P. Balaram
1981
Corpus ID: 56081930
1981
1981
Geochemistry of Tetrapyrrole, Carotenoid, and Perylene Pigments in Sediments from the San Miguel Gap (Site 467) and Baja California Borderland (Site 471), Deep Sea Drilling Project Leg 63
J. Louda
,
E. W. Baker
1981
Corpus ID: 56089551
Twenty-one core samples from DSDP/IPOD Leg 63 were analyzed for products of chlorophyll diagenesis. In addition to the…
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Highly Cited
1972
Highly Cited
1972
Porphyrins XXV. Extended Hückel calculations on location and spectral effects of free base protons
A. Schaffer
,
M. Gouterman
1972
Corpus ID: 94291125
AbstractExtended Hückel calculations for the free bases of porphin, phthalocyanine, tetrabenzporphin, and tetrazaporphin show: (i…
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1950
1950
Separation of NorAdrenalin and Adrenalin
W. James
,
N. Kilbey
Nature
1950
Corpus ID: 4184736
A METHOD of separating these two substances on paper chromatograms, using phenol as solvent, has been described earlier1. No…
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