Carbene record. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

carbene record

21.07.2016

A chain of carbon atoms 6400 atoms long has been synthesized.

Carben, or linear carbon, was first synthesized at the INEOS of the USSR Academy of Sciences in 1960, in the laboratory of Academician V.V. Korshak, by passing acetylene through an aqueous ammonia solution of a monovalent copper salt. The very first attempt was made by Adolf Bayer back in 1885. Then he did not succeed and considered the problem unsolvable.

However, in the 1930s, chains of five to six carbon atoms without any other atoms were found in some mushrooms. This stimulated the resumption of work and ultimately led thirty years later to the synthesis of the compound. The analysis showed that two forms of carbene are possible: with atoms connected alternately by single and triple bonds, and with only double bonds.

And then the chemists began to compete to see who could grow the longest chain. Each new achievement was in turn surpassed by someone. In 2010, the confirmed record was 44 atoms. And now an international group of researchers led by Professor Thomas Pichler from the University of Vienna made a qualitative leap - they moved from tens to hundreds and thousands in the number of atoms in the carbene chain. The secret of success was the use of a nanoreactor - a two-layer carbon nanotube. It was in it that it was possible to grow chains of carbon atoms of record length.

Now the researchers are thinking about how to extract the carbene from the nanotubes and make a monolithic material out of it. It is believed that it will be the hardest in the world: the modulus of elasticity, that is, the ratio of stress to the deformation it causes, is forty times higher than the value for diamond. Despite the abundance of triple or double bonds, the carbene is believed to be stable under normal conditions in the earth's atmosphere.

<< Back: Compact cooler ID-COOLING IS-40v3 22.07.2016

>> Forward: Static electricity amplifies sandstorms 21.07.2016

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Tablet Asus Transformer Pad TF701T 08.09.2013

Asus has announced the release of the Transformer Pad TF701T tablet, equipped with a 10,1-inch display. The display resolution is 2560 x 1600 pixels, the panel type is IGZO-TFT IPS. The display is characterized by viewing angles of 178°. The tablet is built on a single-chip Nvidia Tegra 4 system with a quad-core ARM Cortex-A15 processor running Android and a 72-core GeForce GPU.

You can use the Mobile Dock with keyboard and USB 3.0 port with your tablet. A tablet with a dock has a two-day autonomy reserve (17 hours), without a dock - 13 hours. The tablet has a microSDXC slot, the docking station is equipped with an SDXC slot.

The manufacturer notes the small thickness and weight of the device - 8,9 mm and 585 g, respectively.

The tablet uses Asus' proprietary sound technology SonicMaster, which, according to the manufacturer, provides "loud, clear sound in music, movies and games."

The advantages of the tablet include support for Miracast Wi-Fi technology, with which you can display an image on a compatible external monitor or TV wirelessly. A wired HDMI connection is also provided. Equipment Asus Transformer Pad includes cameras with a resolution of 1,2 and 5 megapixels.

As an option, a TransCover case is proposed, consisting of a hard base and a transparent front part, under which the tablet screen is located.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews