Výsledky vyhledávání - "Zheng-yu Long"

Akademický článek

Color Genesis of Brown Diamond from the Mengyin Kimberlite, China

Autor: Gai-Chao Wu, Xiao-Yan Yu, Fei Liu, Hai-Bo Li, Zheng-Yu Long, Hui Wang

Publikováno v: Crystals, Vol 12, Iss 4, p 449 (2022)

The Mengyin diamondiferous kimberlite cluster in Shandong province is one of the three major sources of natural diamond in China, where many brown diamonds are mined, but the genesis of their color is still controversial. In this paper, studies inclu

Externí odkaz: https://doaj.org/article/53af5257924a43d4bb824c6856e82037

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Akademický článek

Water Molecules in Channels of Natural Emeralds from Dayakou (China) and Colombia: Spectroscopic, Chemical and Crystal Structural Investigations

Autor: Yu-Yu Zheng, Xiao-Yan Yu, Bo Xu, Ting-Ya Zhang, Ming-Ke Wu, Jia-Xin Wan, Hong-Shu Guo, Zheng-Yu Long, Lin-Yan Chen, Li-Jie Qin

Publikováno v: Crystals, Vol 12, Iss 3, p 331 (2022)

H2O molecules in emerald channels have been extensively discussed over the past half century. Recent studies paid attention to their classification and coordination, but have mostly focused on the type related to Na+. There are few works on the other

Externí odkaz: https://doaj.org/article/61aad17cb0544ac7a41bdc486ae76f9c

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Akademický článek

Overview of Gemstone Resources in China

Autor: Xiao-Yan Yu, Zheng-Yu Long, Yi Zhang, Li-Jie Qin, Cun Zhang, Zhi-Rong Xie, Yu-Rui Wu, Ying Yan, Ming-Ke Wu, Jia-Xin Wan

Publikováno v: Crystals, Vol 11, Iss 10, p 1189 (2021)

Gemstones are minerals of gem qualities used for adornment and decoration with the attributes of beauty, durability and rarity. Traditionally, although China has been regarded as the most important source for nephrite, over the past decades, a large

Externí odkaz: https://doaj.org/article/9f009bf5c9e047f3b470d1a17dc6bcaf

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Akademický článek

Photoinduced Electron-transfer Reaction of Pentafluoroiodobenzene with Alkenes

Autor: Qing-Yun Chen, Zheng-Yu Long, Ping Cao

Publikováno v: Molecules, Vol 2, Iss 1, Pp 11-16 (1997)

Irradiation of pentafluoroiodobenzene and alkenes gave the corresponding adducts. The presence of single electron-transfer scavengers, (p-dinitrobenzene and t-Bu2NO) and the free radical inhibitor (hydroquinone) suppressed the reaction. A photoinduce

Externí odkaz: https://doaj.org/article/46939c7eb4504fec8935f5699f61cccc

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