Nuclear magnetic resonance (NMR) spectroscopy is a technique that detects the chemical environment of atomic nuclei by the absorption of radio-frequency electromagnetic radiation when in the ...

OnePlus is looking to upstage Samsung's big announcements this year. The company is preparing to launch its new flagship smartphone, the OnePlus 13, on January 7 - about two weeks ahead of the ...

The OnePlus 13 and OnePlus 13R stand out with a new vegan leather material, toughness against the elements, and lots of power. I’m one of PCMag’s mobile analysts. That means I check out phones ...

In order to understand and control glycosylation reactions, thorough mechanistic studies are required. Reaction intermediates found by NMR spectroscopy often cannot explain the glycosylation’s ...

OnePlus will unveil the OnePlus 13 and OnePlus 13R on January 7, 2025, at its Winter Launch event. Three color options are available for the OnePlus 13, while only one color, astral trail, has ...

The OnePlus 13 has been highly anticipated due to the success of the OnePlus 12, which launched just around a year ago. The company has officially set a date for the launch and details what that ...

OnePlus has recently revealed that it would launch the OnePlus 13 internationally next month, and today the company has seemingly confirmed the exact date and time of the event. And not just that ...

We finally have official word that the OnePlus 13 is launching early next year, and will be bringing several interesting upgrades along with it that ought to have your attention. On what happens ...

December 13: Today is Friday, December 13— a day that signals just a little over two weeks remain before 2024 comes to a close. It is also known as Friday, the 13th, a date considered unlucky in ...

The iQOO 13 comes in at a starting price of Rs 54,999 in India. On paper, it sounds like a great deal, as it comes with the Snapdragon 8 Elite chipset, a 6000 mAh battery and a 50-megapixel triple ...

整个反应历程都是可逆的，氰基首先进攻羰基，氰基使醛氢的酸性增强，羰基碳变为碳负离子进攻第二分子醛进行亲核加成，生成的氰基二醇失去氰基得到产物。当芳环上有吸电子和给电子基团时反应都不能进行，因为吸电子基团会使芳基氰醇碳负离子的亲核性 ...