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The reaction of [Rh(H)(PEt3)3] (1) with the refrigerant HFO‐1234yf (2,3,3,3‐tetrafluoropropene) affords an efficient route to obtain [Rh(F)(PEt3)3] (3) by C–F bond activation. Catalytic hydrodefluorinations were achieved in the presence of the silane HSiPh3. In the presence of fluorosilane the fluorido complex 3 provides a C–H bond activation followed by a 1,2‐fluorine shift to produce [Rh{(E)‐C(CF3)=CHF}(PEt3)3] (4). Similar rearrangements of HFO‐1234yf were observed at [Rh(E)(PEt3)3] (E = Bpin (6), C7D7 (8), Me (9)). The ability to favor C–H bond activation using [Rh(F)(PEt3)3] (3) and fluorosilane is also demonstrated with 3,3,3‐trifluoropropene. Studies are supported by DFT calculations.
Kukmin Ilbo (Korea) 05/19/2019 06:12
‘코어장전’ 조용인이 완패에 진한 아쉬움을 드러냈다. 구성원 개개인의 경험이 충분히 많은 만큼, 연습을 더 열심히 해서 기량을 올리자고 했다. 팀 리퀴드(북미)는 19일(현지시간) 대만 타이베이의 허핑 농구 체육관에서 열린 G2 e스포츠(유럽)와의 2019 LoL 미드 시즌 인비테이셔널(MSI) 결승전에서 0대 3으로 완패했다. 경기 후 미디어 인터뷰에서 ‘코어장전’ 조용인은 “좋은 모습 보여드리고 싶었다. 팬들이 저희 경기를 보며 즐거웠으면 좋았을 텐데 그러지 못했다. 팬들에게 미안하다”면서 고개를 숙였다. 그는 “G2는 게임을 빠르면서 창의적으로 한다. 어떤 플레이를 할 지 모르는 팀이다”면서 “잘 대처하지 못하고 져서 많이 아쉬웠다”고 회상했다. 또한 “저희 팀 선수들 개개인이 경험이 많다”면서 “지금까지도 충분히 잘해왔다. 더 잘 하려면 월드 챔피언십(롤드컵)까지 시간을 두고 연습을 열심히 해야 될 것 같다”고 말했다. 타이베이=이다니엘 기자 dne@kmib.co.kr.
Государственная гидрометеорологическая служба объявила на ближайшие дни "желтый" код метеорологической опасности в связи с неустойчивым характером погоды. По данным Государственной гидрометеорологической слубы (ГГМС) сегодня также возможны грозы, местами сильные ливни (15-25 л/м2), град и шквалы порывами 17-22 м/с. Температура воздуха составит свыше 25 градусов днем и около 15 градусов ночью. В ко.
На этот раз сработала сигнализация о неполадке в гидросистеме. Фото: архив ТАСС Пассажиры вылетели в Москву утром на Airbus A320. 19.05.2019 - 11:45.
В центре Кишинева проходит марш ЛГБТ-сообщества. Марш солидарности проходит под лозунгом "Я в порядке". Таким образом, представители сообщества призывают общество не подвергать их дискриминации.
Nezavismaya Gazeta (Russia) 05/19/2019 06:10
Американские власти планируют увеличить к 2020 году поддержку Украины в военно-технической сфере, выделив стране более 700 млн долл. Об этом заявил посол Украины в США Валерий Чалый. При этом дипломат упрекнул Евросоюз, отметив, что США оказывают большую поддержку стране, чем европейцы. Ранее.

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