Sulfur-Bridged Terthiophene Dimers: How Sulfur Oxidation State Controls Interchromophore Electronic Coupling

2015 ◽  
Vol 137 (39) ◽  
pp. 12552-12564 ◽  
Author(s):  
Chad D. Cruz ◽  
Peter R. Christensen ◽  
Eric L. Chronister ◽  
David Casanova ◽  
Michael O. Wolf ◽  
...  
2019 ◽  
Vol 10 (32) ◽  
pp. 7561-7573 ◽  
Author(s):  
Chad D. Cruz ◽  
Jennifer Yuan ◽  
Clàudia Climent ◽  
Nathan T. Tierce ◽  
Peter R. Christensen ◽  
...  

For anthracene dimers bridged by a sulfur atom, modulating the sulfur oxidation state profoundly affects excited state behavior. The SO2-bridge supports long-lived states and photodimerization, while the S-bridge undergoes intersystem crossing.


2020 ◽  
Vol 6 (31) ◽  
pp. eaba6342
Author(s):  
Ming Tang ◽  
Cin-Ty A. Lee ◽  
Wei-Qiang Ji ◽  
Rui Wang ◽  
Gelu Costin

Porphyry ore deposits, Earth’s most important resources of copper, molybdenum, and rhenium, are strongly associated with felsic magmas showing signs of high-pressure differentiation and are usually found in places with thickened crust (>45 kilometers). This pattern is well-known, but unexplained, and remains an outstanding problem in our understanding of porphyry ore deposit formation. We approach this problem by investigating the oxidation state of magmatic sulfur, which controls the behavior of ore-forming metals during magma differentiation and magmatic-hydrothermal transition. We use sulfur in apatite to reconstruct the sulfur oxidation state in the Gangdese batholith, southern Tibet. We find that magma sulfate content increased abruptly after India-Eurasia collision. Apatite sulfur content and the calculated magma S6+/ΣS ratio correlate with whole-rock dysprosium/ytterbium ratio, suggesting that residual garnet, favored in thickened crust, exerts a first-order control on sulfur oxidation in magmatic orogens. Our findings link sulfur oxidation to internal petrogenic processes and imply an intrinsic relationship of magma oxidation with synmagmatic crustal thickening.


Langmuir ◽  
2010 ◽  
Vol 26 (14) ◽  
pp. 12140-12146 ◽  
Author(s):  
Yong-Xue Ding ◽  
Seth Streitmatter ◽  
Bryon E. Wright ◽  
Vladimir Hlady

2014 ◽  
Vol 16 (24) ◽  
pp. 12266-12274 ◽  
Author(s):  
Kim D. Thériault ◽  
Todd C. Sutherland

Modifications in the sulfur oxidation state of phenothiazine results in dramatic changes to the excited-state geometry with little effect on the HOMO energy.


CrystEngComm ◽  
2012 ◽  
Vol 14 (23) ◽  
pp. 7848
Author(s):  
Carla A. Daly ◽  
Kevin S. Eccles ◽  
Lorraine M. Bateman ◽  
Noel M. O' Boyle ◽  
Simon E. Lawrence ◽  
...  

ChemInform ◽  
2004 ◽  
Vol 35 (26) ◽  
Author(s):  
Dominique Leca ◽  
Kai Song ◽  
Muriel Amatore ◽  
Louis Fensterbank ◽  
Emmanuel Lacote ◽  
...  

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