The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.
Band Gap Control in Conjugated Oligomers via Lewis Acids
Abstract
A simple and effective strategy for optical band gap control is demonstrated through the use of a novel small acceptor/donor/acceptor molecule, 1, and group-13 Lewis acids. Chromophore 1 contains a dithienolesilole donor unit end-capped with benzo-2,1,3-thiadiazole (BT) acceptor units. Addition to 1 of stoichiometeric quantities of Lewis acids of varying strength resulted in the formation of Lewis adducts with progressively red-shifted primary charge-transfer absorption bands. These complexes have absorption spectra that approach those of known conjugated copolymers containing related units. NMR spectroscopy and X-ray diffraction studies revealed that 1 binds 2 equiv of Lewis acid via the nitrogen at the 3-position of BT.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“Optical properties of an A-D-A chromophore with CT character has been tuned simply by a complexation of Lewis acid to a basic site of the π-delocalized framework.70”
Citations
Cites
Pearson, R. G. (1963) · Journal of the American Chemical Society · doi:10.1021/ja00905a001 · Cited by 10,475
Design Rules for Donors in Bulk‐Heterojunction Solar Cells—Towards 10 % Energy‐Conversion Efficiency
Scharber, M., Mühlbacher, D., Koppe, M., Denk, P., Waldauf, C., Heeger, A. J., & Brabec, C. J. (2006) · Advanced Materials · doi:10.1002/adma.200501717 · Cited by 5,198
Grätzel, M. (2003) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/s1389-5567(03)00026-1 · Cited by 4,405
Efficient Tandem Polymer Solar Cells Fabricated by All-Solution Processing
Kim, J. Y., Lee, K., Coates, N. E., Moses, D. J., Nguyen, T., Dante, M., & Heeger, A. J. (2007) · Science · doi:10.1126/science.1141711 · Cited by 3,270
Efficiency enhancement in low-bandgap polymer solar cells by processing with alkane dithiols
Peet, J., Kim, J. Y., Coates, N. E., L., W., Moses, D. J., Heeger, A. J., & Bazan, G. C. (2007) · Nature Materials · doi:10.1038/nmat1928 · Cited by 3,203
Self-citationPolymer‐Fullerene Bulk‐Heterojunction Solar Cells
Dennler, G., Scharber, M. C., & Brabec, C. J. (2009) · Advanced Materials · doi:10.1002/adma.200801283 · Cited by 3,161
Hou, J., Chen, H.-Y., Zhang, S., Li, G., & Yang, Y. (2008) · Journal of the American Chemical Society · doi:10.1021/ja806687u · Cited by 1,126
Molecular Engineering of the Band Gap of π‐Conjugated Systems: Facing Technological Applications
Roncali, J. (2007) · Macromolecular Rapid Communications · doi:10.1002/marc.200700345 · Cited by 722
Jacobsen, H., Berke, H., Döring, S., Kehr, G., Erker, G., Fröhlich, R., & Meyer, O. G. J. (1999) · Organometallics · doi:10.1021/om981033e · Cited by 359
Kato, S., Matsumoto, T., Shigeiwa, M., Gorohmaru, H., Maeda, S., Ishi‐i, T., & Mataka, S. (2005) · Chemistry - A European Journal · doi:10.1002/chem.200500921 · Cited by 244
Research works printed but not linked: 1
- Piers W. E., 2005, Adv. Organomet. Chem., 52, 1
Cited by
Sorted by citations
Near‐Infrared Organic Compounds and Emerging Applications
Qian, G., & Wang, Z. Y. (2010) · Chemistry - An Asian Journal · doi:10.1002/asia.200900596 · Cited by 779
Design and Synthesis of Molecular Donors for Solution-Processed High-Efficiency Organic Solar Cells
Coughlin, J. E., Henson, Z. B., Welch, G. C., & Bazan, G. C. (2013) · Accounts of Chemical Research · doi:10.1021/ar400136b · Cited by 492
Self-citationDoping Approaches for Organic Semiconductors
Scaccabarozzi, A. D., Basu, A., Aniés, F., Liu, J., Zapata‐Arteaga, O., Warren, R., Firdaus, Y., Nugraha, M. I., Lin, Y., Campoy‐Quiles, M., et al. (2021) · Chemical Reviews · doi:10.1021/acs.chemrev.1c00581 · Cited by 486
Atomistic Band Gap Engineering in Donor–Acceptor Polymers
Gibson, G. L., McCormick, T. M., & Seferos, D. S. (2011) · Journal of the American Chemical Society · doi:10.1021/ja208917m · Cited by 338
Neto, B. A. D., Lapis, A. A. M., Júnior, E. N. D. S., & Dupont, J. (2012) · European Journal of Organic Chemistry · doi:10.1002/ejoc.201201161 · Cited by 337
Metadata
- Authors
- Welch, G. C., Coffin, R., Peet, J., & Bazan, G. C.
- Affiliations
- University of California, Santa Barbara (US)
- Corresponding author
- Bazan, Guillermo C.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-07-08
- Volume
- 131
- Issue
- 31
- Pages
- 10802-10803
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1978926229
- Cited by
- 159
- References
- 24
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 8 · 2023: 11 · 2022: 11 · 2021: 7 · 2020: 10 · 2019: 12 · 2018: 11 · 2017: 6 · 2016: 12 · 2015: 13 · 2014: 9 · 2013: 9 · 2012: 12
- FWCI
- 9.52
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the American Chemical Society (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
- Physical Sciences › Chemistry › Organic Chemistry › Organoboron and organosilicon chemistry
- Keywords
- conjugated oligomers, Lewis acid adducts, benzo[2,1,3]thiadiazole, charge-transfer absorption, bathochromic shift, conjugated copolymers
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Band Gap Control in Conjugated Oligomers via Lewis Acids. https://app.cochat.ai/papers/10.1021/ja902789w
- The paper
- Welch, G. C., Coffin, R., Peet, J., & Bazan, G. C. (2009). Band Gap Control in Conjugated Oligomers via Lewis Acids. Journal of the American Chemical Society. https://doi.org/10.1021/ja902789w
