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Abstract The South Atlantic Ocean is an important region for anthropogenic CO2(Canth) uptake and storage in the world ocean, yet is less studied. Here, after an extensive sensitivity test and method comparison, we applied an extended multiple linear regression method with six characteristic water masses to estimate Canthchange or increase (ΔCanth) between 1980s and 2010s in the South Atlantic Ocean using two meridional transects (A16S and A13.5) and one zonal transect (A10). Over a period of about 25 years, the basin‐wide ΔCanthwas 3.86 ± 0.14 Pg C decade−1. The two basins flanking the Mid‐Atlantic Ridge had different meridional patterns of ΔCanth, yielding an average depth‐integrated ΔCanthin the top 2000 m of 0.91 ± 0.25 mol m−2 yr−1along A16S on the west and 0.57 ± 0.22 mol m−2 yr−1along A13.5 on the east. The west‐east basin ΔCanthcontrasts were most prominent in the tropical region (0–20°S) in the Surface Water (SW), approximately from equator to 35°S in the Subantarctic Mode Water (Subantarctic Mode Water (SAMW)), and all latitudes in the Antarctic Intermediate Water (AAIW). Less ΔCanthin the eastern basin than the western basin was caused by weaker ventilation driven by SAMW and AAIW formation and subduction and stronger Antarctic Bottom Water (AABW) formation in the former than the latter. In addition to the spatial heterogeneity, Canthincrease rates accelerated from the 1990s to the 2000s, consistent with the overall increase in air‐sea CO2exchange in the South Atlantic Ocean.
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This content will become publicly available on January 1, 2026
Deep-blue emitting 9,10-bis(perfluorobenzyl)anthracene
A new deep-blue emitting and highly fluorescent anthracene (ANTH) derivative containing perfluorobenzyl (BnF) groups, 9,10-ANTH(BnF)2, was synthesized in a single step reaction of ANTH or ANTH(Br)2with BnFI, using either a high-temperature Cu-/Na2S2O3-promoted reaction or via a room-temperature photochemical reaction. Its structure was elucidated by NMR spectroscopy and single crystal X-ray diffractometry. The latter revealed no π–π interaction between neighboring ANTH cores. A combination of high photoluminescence quantum yield (PLQY) of 0.85 for 9,10-ANTH(BnF)2, its significantly improved photostability compared to ANTH and 9,10-ANTH derivatives, and a simple synthetic access makes it an attractive material as a deep-blue OLED emitter and an efficient fluorescent probe.
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- PAR ID:
- 10599816
- Publisher / Repository:
- Beilstein-Institut
- Date Published:
- Journal Name:
- Beilstein Journal of Organic Chemistry
- Volume:
- 21
- ISSN:
- 1860-5397
- Page Range / eLocation ID:
- 515 to 525
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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