science余金权酮+氨基酸C-H活化.pdfVIP

RESEARCH | REPORTS confirmation by Kaguya and LADEE of the lunar for M.S. was through NASA grants NNX14AG14A, NNX13AP94G, Supplementary Text Na trend between November and April provides and NNX13AO74G. All LADEE UVS data are available online at the NASA Figs. S1 to S5 the strongest evidence yet for an annual varia- Planetary Data System (PDS), including all raw and calibrated References (25–34) spectra and derived sodium and potassium line strengths. tion of the Na exosphere. This trend is likely the cumulative response of Na to meteoroid streams, SUPPLEMENTARY MATERIALS 13 August 2015; accepted 30 November 2015 whose annual activity peaks from November through /content/351/6270/249/suppl/DC1 Published online 17 December 2015 January and then subsides until the summer. The Materials and Methods 10.1126/science.aad2380 substantial residence time for Na at the surface suggested by this interpretation inevitably leads to the conclusion that Na migrates toward the ORGANIC CHEMISTRY poles like other volatiles (e.g., water) in these cycles of adsorption and redesorption. The K measure- 3 ments show a strong but, contrary to Na, short- Functionalization of C(sp )–H bonds lived response to the Geminids meteoroid shower. Outside of the meteoroid streams, K shows a regular variation across a lunation that correlates using a transient directing group strongly with the abundance of potassium in the lunar bulk soil. Combined, t