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    Organic Molecules Challenge Silicon's Reign as King of Semiconductors There is a revolution fomenting in the semiconductor industry. It may take 30 years or more to reach perfection, but when it does the advance may be so great that today's computers will be little more than calculators compared to what will come after. The revolution is called molecular electronics, and its goal is to depose silicon as king of the computer chip and put carbon in its place. The perpetrators are a few clever chemists

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    Biological Molecules Introduction: Without carbon, nitrogen, hydrogen, sulfur, oxygen and phosphorus, life wouldn't exist. These are the most abundant elements in living organisms. These elements are held together by covalent bonds, ionic bonds, hydrogen bonds, and disulfide bonds. Covalent bonds are especially strong, thus, are present in monomers, the building blocks of life. These monomers combine to make polymers, which is a long chain of monomers strung together. Biological molecules can be distinguished

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    Figure 6 STM images of CuPc molecules adsorbed on the TiO2(011) surface, panels a) and b) show sample before annealing, two distinct phases are observed, panels c) and d) illustrate sample after 2 hour annealing at 150°C, only phase II is visible, the amount of molecule dislocations, vacancies and defects is decreased after annealing, panels e) and f) show sample after two-hour annealing at 200°C, when completely new phase III is formed with up-right molecules, bias voltage +3.0V, tunnelling current

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    A single molecule may be partly to blame for nicotine’s addictive allure, a finding that researchers say could lead to potential therapies to help millions of smokers quit a life-threatening habit. More than 4 million people around the globe — 440,000 of them Americans — die from smoking-related causes each year. And, the nicotine-laced smoke damages more than just their lungs. The California researchers not only pinpointed a molecule responsible for nicotine addiction, they also created specialized

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    The Spirit Molecule (DMT): An Endogenous Psychoactive "The feeling of doing DMT is as though one had been struck by noetic lightning. The ordinary world is almost instantaneously replaced, not only with a hallucination, but a hallucination whose alien character is its utter alienness. Nothing in this world can prepare one for the impressions that fill your mind when you enter the DMT sensorium."- McKenna. N,N-dimethyltryptamine(DMT) is a psychoactive chemical in the tryptamine family, which

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    Caffeine: Experiment 5 Covalent Molecules

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    Jacob Helget Experiment 5 Covalent Molecules Section 12 – Thursday 2:00-4:45 Lab Instructor: William Bott Caffeine Caffeine is a very interesting chemical. Caffeine is found in many places including coffee plant, tea leaves, kola nuts and cocoa (1). Humans then process these plants into food stuff that contains caffeine such as tea, coffee and chocolate. Caffeine is composed of 14 atoms with a molecular formula of C8H10N4O2. It is one of the few central nervous system stimulants still legal in

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    recently reported results of preliminary studies on the behavior of PTCDA molecules adsorbed on the TiO2(011) at very low coverage (approximately 0.05ML) [A. Tekiel, S. Godlewski, J. Budzioch, M. Szymonski, Nanotechnology 19 (2008) 495304]. There we have focused on the self-assembly process leading to formation of one-dimensional chains oriented along the crystallographic direction (Fig. 8a). These chains can include up to 20 molecules, which are uniformly oriented with their longer axis parallel to the

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    Viruses: Complex Molecules or Simple Life Forms? Viruses have been defined as "entities whose genomes are elements of nucleic acid that replicate inside living cells using the cellular synthetic machinery, and cause the synthesis of specialised elements that can transfer the genome to other cells." They are stationaryand are unable to grow. Because of all these factors, it is debatable whether viruses are the most complex of molecules or the simplest life forms. While the definition of living organisms

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    The Transfer of Energy During Heating of Large Molecules AIM: The aim of this investigation is, to find out which molecules transfer the most energy. PREDICTION: I predict that as the numbers of particles are increased, the energy transferred will also be increased. We will use methanol, ethanol, propanol, butonol and octanol. The word and symbol equations for these reactions are: Methanol: Methanol + oxygen carbon dioxide + water ========================================

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    level of theory(B3LYP). Therefore, the protonated nitrogen of the HALS molecule had higher energy than the neutral nitrogen through the potential energy of the reaction. Accordingly, the hypothesis that was reported becomes incorrect against to the calculation result found it from Gaussian program. 4.2 The aim of calculation the activation energy The objective of this report is to calculate the activation energy for the molecule of HALS reaction using GAUSSIAN 09 via the WebMO interface. There have

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