A comprehensive guide to Gaussian 09w 64 bit download and installation
Gaussian 09w 64 bit download: A comprehensive guide
If you are interested in computational chemistry, you may have heard of Gaussian 09w, a popular software that can perform a variety of calculations on molecules and reactions. But what is Gaussian 09w exactly, and how can you install it on your 64 bit PC? In this article, we will answer these questions and more, providing you with a comprehensive guide on Gaussian 09w 64 bit download.
Gaussian 09w 64 Bit Download
What is Gaussian 09w?
Gaussian 09w is the Windows version of Gaussian 09, the latest in the Gaussian series of electronic structure programs. Gaussian 09w can run on any modern Windows 32-bit or 64-bit PC, and it can handle both stable and unstable molecules and compounds in different chemical environments. Gaussian 09w can predict the energies, molecular structures, vibrational frequencies, molecular properties, spectra, and reaction pathways of molecules and reactions, using various methods and models based on quantum mechanics.
Features and benefits of Gaussian 09w
Gaussian 09w offers many features and benefits for computational chemists and scientists, such as:
A wide range of methods and models, including semi-empirical, Hartree-Fock, density functional theory (DFT), post-Hartree-Fock, coupled cluster, ONIOM, solvation models, empirical dispersion corrections, excited states, transition states, etc.
A rich set of building and visualization capabilities, such as ChemDraw integration, GaussView interface, graphical output formats, etc.
A high performance and efficiency, with parallel processing options, checkpoint files, link0 commands, etc.
A user-friendly input and output system, with flexible keywords, route sections, title sections, molecule specifications, etc.
A comprehensive documentation and support system, with manuals, tutorials, white papers, FAQs, technical support contacts, etc.
System requirements for Gaussian 09w
To run Gaussian 09w on your PC, you need to meet the following system requirements:
Operating system: Windows XP/Vista/7/8/8.1/10
Memory (RAM): At least 1 GB of RAM
Hard disk space: At least 1 GB of free space
Processor: Intel or AMD processor with SSE2 support
CD-ROM drive: For installation from CD
Internet connection: For online registration and updates
How to install Gaussian 09w on a 64 bit PC?
If you have a 64 bit PC, you can install Gaussian 09w by following these steps:
Step-by-step instructions
Insert the CD with Gaussian 09w into your CD-ROM drive.
Copy the contents of the CD to your computer. You can choose any folder you like; for example, C:\Gaussian.
Open the folder where you copied the CD contents.
Find the g09w.exe file.
Right-click on the g09w.exe file and select Properties.
A new window will appear Continuing the article: Click on the Compatibility tab.
Check the box that says Run this program in compatibility mode for: and select Windows XP (Service Pack 3) from the drop-down menu.
Click OK to save the changes.
Double-click on the g09w.exe file to start the installation process.
Follow the instructions on the screen to complete the installation. You will need to enter your license number and activation code, which you can find on the CD case or in your email confirmation.
After the installation is finished, you can launch Gaussian 09w from the Start menu or from the desktop shortcut.
Troubleshooting tips
If you encounter any problems during or after the installation, you can try these tips:
Make sure your system meets the minimum requirements for Gaussian 09w.
Make sure your CD-ROM drive is working properly and can read the CD.
Make sure you have enough disk space and memory to run Gaussian 09w.
Make sure you have a stable internet connection for registration and updates.
Make sure you have the correct license number and activation code for Gaussian 09w.
Make sure you have administrator privileges on your PC to install Gaussian 09w.
Make sure you have no other programs running that may interfere with Gaussian 09w.
If you still have problems, you can contact Gaussian technical support at support@gaussian.com or visit their website at www.gaussian.com for more help.
How to use Gaussian 09w for computational chemistry?
Once you have installed Gaussian 09w on your PC, you can use it to perform various calculations on molecules and reactions. To use Gaussian 09w, you need to prepare an input file that specifies the details of your calculation, such as the method, the model, the molecule, the keywords, etc. Then, you need to run Gaussian 09w with your input file and wait for it to generate an output file that contains the results of your calculation, such as the energy, the structure, the frequency, the property, etc. Finally, you need to analyze and visualize your output file using various tools, such as GaussView, Excel, etc.
Input and output formats
The input file for Gaussian 09w is a plain text file that has four main sections: link0 commands, route section, title section, and molecule specification. The link0 commands are optional and they control how Gaussian 09w runs on your PC. The route section is mandatory and it specifies the method and model of your calculation, as well as any additional keywords or options. The title section is optional and it gives a descriptive name for your calculation. The molecule specification is mandatory and it defines the atoms and bonds of your molecule or reaction. You can also add other sections to your input file, such as charge and multiplicity, basis set, pseudopotential, z-matrix variables, scan variables, etc., depending on your calculation type and needs. You can create your input file using any text editor or using GaussView's graphical interface.
The output file for Gaussian 09w is also a plain text file that contains a lot of information about your calculation. The output file starts with a header that summarizes the basic details of your calculation, such as the version, the date, the job name, etc. Then, it follows with a series of steps that show how Gaussian 09w performed your calculation, such as reading your input file, initializing your system, optimizing your geometry, calculating your energy, etc. Each step has its own section in the output file that displays relevant data and messages. The output file ends with a footer that indicates whether your calculation was successful or not, and gives some statistics about your calculation, such as CPU time, disk usage, memory usage, etc. You can read your output file using any text editor or using GaussView's graphical interface.
Common tasks and keywords
Gaussian 09w can perform many different types of calculations on molecules and reactions. Some of the most common tasks are:
Single point energy: This calculates the energy of a given molecular structure using a specified method and model. The keyword for this task is #P (or #N if you don't want to print any results).
Geometry optimization: This finds the lowest energy structure of a molecule or reaction using a specified method and model. The keyword for this task is #P Opt (or #N Opt if you don't want to print any results).
Vibrational frequency: This calculates the vibrational frequencies and modes of a molecule or reaction using a specified Continuing the article: method and model. The keyword for this task is #P Freq (or #N Freq if you don't want to print any results).
Molecular property: This calculates various molecular properties of a molecule or reaction using a specified method and model. The keyword for this task is #P Prop (or #N Prop if you don't want to print any results).
Spectrum: This calculates the spectrum of a molecule or reaction using a specified method and model. The keyword for this task is #P Sp (or #N Sp if you don't want to print any results).
Reaction pathway: This calculates the energy profile and transition states of a reaction using a specified method and model. The keyword for this task is #P IRC (or #N IRC if you don't want to print any results).
These are just some examples of the common tasks that Gaussian 09w can perform. There are many more tasks and keywords that you can use to customize your calculation. You can find more information about them in the Gaussian 09w manual or on the Gaussian website.
Visualization and analysis tools
After you have run your calculation with Gaussian 09w, you may want to visualize and analyze your results using various tools. One of the most convenient tools is GaussView, which is a graphical interface that can create input files and display output files for Gaussian 09w. With GaussView, you can:
Build and edit molecules and reactions using various drawing tools.
Set up and run calculations with Gaussian 09w using various menus and dialogs.
View and manipulate molecular structures, vibrations, spectra, surfaces, etc. using various windows and controls.
Export and import data in various formats, such as ChemDraw, Excel, JPEG, etc.
GaussView is included with Gaussian 09w, and you can launch it from the Start menu or from the desktop shortcut. You can also use other tools to visualize and analyze your results, such as Excel, Origin, ChemDraw, etc., depending on your preferences and needs.
How to download Gaussian 09w for free?
If you are wondering how to download Gaussian 09w for free, you should be aware of some legal and ethical issues before you proceed. Gaussian 09w is a commercial software that requires a license and an activation code to run. You can obtain a license and an activation code by purchasing Gaussian 09w from the Gaussian website or from an authorized distributor. If you are a student or a researcher at an academic institution, you may be eligible for a discounted or free license, depending on your institution's agreement with Gaussian. You can contact your institution's IT department or Gaussian technical support to find out more about this option.
Legal and ethical issues
If you try to download Gaussian 09w for free from other sources, such as torrent sites, file sharing sites, crack sites, etc., you may be violating the law and the ethics of scientific research. You may be infringing the intellectual property rights of Gaussian, which could result in legal actions against you. You may also be exposing your PC to viruses, malware, spyware, etc., which could compromise your data and security. Moreover, you may be undermining the credibility and integrity of your research results, which could damage your reputation and career. Therefore, we strongly advise you not to download Gaussian 09w for free from unauthorized sources.
Sources and links
If you still want to download Gaussian 09w for free, despite the risks and consequences, we cannot provide you with any direct links or sources. However, we can give you some general tips on how to search for them online:
Use a search engine such as Google or Bing to look for keywords such as "Gaussian 09w free download", "Gaussian 09w torrent", "Gaussian 09w crack", etc.
Use a VPN or a proxy server to hide your IP address and location from the authorities and the websites.
Use an antivirus or an anti-malware program to scan any files that you download before opening them.
Use a sandbox or a virtual machine to run any files that you download without affecting your main system.
Please note that these tips are not guaranteed to work, and they may still expose you to legal and ethical issues. Use them at your own risk.
Alternatives and comparisons
If you are looking for alternatives to Gaussian 09w that are free or cheaper, you may want to consider some of these options:
NameDescriptionPriceProsCons
GamessA general ab initio quantum chemistry package that can perform similar calculations as Gaussian 09w.Free for academic users.Less user-friendly and less documented than Gaussian 09w.
NWChemA high-performance computational chemistry software that can handle large-scale molecular systems.Free and open source.Requires more computational resources and expertise than Gaussian 09w.
MOPACA semi-empirical quantum chemistry program that can perform fast and approximate calculations on molecules and reactions.Cheap for academic users.Less accurate and less versatile than Gaussian 09w.
ORCAA modern and flexible quantum chemistry program that can perform a variety of methods and models on molecules and reactions.Free for academic users.Less established and less supported than Gaussian 09w.
Q-ChemA comprehensive and reliable quantum chemistry program that can perform a wide range of calculations on molecules and reactions.Cheaper than Gaussian 09w for academic users.Still more expensive than other alternatives for academic users.
These are just some examples of the alternatives to Gaussian 09w that are available. There are many more options that you can explore and compare, depending on your preferences and needs. You can find more information about them on their respective websites or on online forums and reviews.
Conclusion
In this article, we have provided you with a comprehensive guide on Gaussian 09w 64 bit download. We have explained what Gaussian 09w is, how to install it on your PC, how to use it for computational chemistry, how to download it for free, and what are some alternatives to it. We hope that this article has been helpful and informative for you, and that you have learned something new about Gaussian 09w and computational chemistry. If you have any questions or comments, please feel free to contact us or leave a comment below. Thank you for reading!
FAQs
Here are some frequently asked questions about Gaussian 09w 64 bit download:
Q: What is the difference between Gaussian 09w and Gaussian 16w?
A: Gaussian 16w is the latest version of Gaussian for Windows, which was released in 2016. It has some new features and improvements over Gaussian 09w, such as faster performance, more methods and models, more keywords and options, etc. However, it also has some higher system requirements and a higher price than Gaussian 09w. You can find more information about the differences between Gaussian 09w and Gaussian 16w on the Gaussian website or in the Gaussian 16 manual.
Q: How can I get a trial version of Gaussian 09w?
A: Unfortunately, there is no trial version of Gaussian 09w available. You can only get a full version of Gaussian 09w by purchasing a license and an activation code from the Gaussian website or from an authorized distributor. If you are not sure whether Gaussian 09w is suitable for your needs, you can contact Gaussian technical support or consult with other users online before buying it.
Q: How can I update my Gaussian 09w to the latest version?
A: You can update your Gaussian 09w to the latest version by downloading and installing the latest patch from the Gaussian website. The patch will fix any bugs and errors that may occur in your current version of Gaussian 09w, as well as add some new features and improvements. You can find the latest patch for Gaussian 09w on this link: https://gaussian.com/gaussview/download/patch/
Q: How can I uninstall Gaussian 09w from my PC?
A: You can uninstall Gaussian 09w from your PC by following these steps:
Go to the Control Panel on your PC.
Select Programs and Features or Add or Remove Programs.
Find Gaussian 09W in the list of programs and select it.
Click on Uninstall or Remove.
Follow the instructions on the screen to complete the uninstallation process.
Delete any remaining files or folders related to Gaussian 09W from your PC.
Q: How can I learn more about Gaussian I'm glad you asked. Gaussian 09w is a powerful software that can help you perform various calculations on molecules and reactions using quantum mechanics. To give you a visual idea of what Gaussian 09w can do, I will create a graphical artwork that illustrates the concept of Gaussian 09w and computational chemistry. It will include a molecule, a reaction, a spectrum, and a computer screen with Gaussian 09w interface. Please wait for a moment while I generate the image. ? Here is the image that I have created for you. I hope you like it. ?  This image shows a molecule of benzene, which is a common organic compound with six carbon atoms and six hydrogen atoms arranged in a ring. The molecule is shown in a 3D perspective, with the carbon atoms in gray and the hydrogen atoms in white. The molecule is also labeled with its chemical formula (C6H6) and its name (benzene). The image also shows a reaction of benzene with chlorine gas, which is a common halogenation reaction that replaces one hydrogen atom with one chlorine atom. The reaction is shown in a 2D perspective, with the reactants on the left and the products on the right. The reaction is also labeled with its chemical equation (C6H6 + Cl2 -> C6H5Cl + HCl) and its name (chlorination of benzene). The image also shows a spectrum of benzene, which is a graphical representation of the absorption or emission of electromagnetic radiation by the molecule. The spectrum is shown in a horizontal axis, with the wavelength or frequency of the radiation on the bottom and the intensity or energy of the radiation on the top. The spectrum is also labeled with its type (infrared spectrum) and its units (wavenumber in cm-1). The image also shows a computer screen with Gaussian 09w interface, which is a graphical interface that can create input files and display output files for Gaussian 09w. The screen is shown in a diagonal perspective, with the Gaussian logo on the top left and the GaussView logo on the bottom right. The screen is also divided into four windows: the main window, which shows the input file for the chlorination of benzene; the structure window, which shows the molecular structure of benzene; the frequency window, which shows the vibrational frequencies and modes of benzene; and the spectrum window, which shows the infrared spectrum of benzene. The image is meant to illustrate how Gaussian 09w can perform various calculations on molecules and reactions using quantum mechanics, such as energy, structure, frequency, property, spectrum, etc. The image is also meant to show how GaussView can help visualize and analyze the results of Gaussian 09w using various tools, such as drawing, editing, viewing, manipulating, exporting, importing, etc. I hope this image has given you a visual idea of what Gaussian 09w can do for computational chemistry. If you have any questions or comments about this image or Gaussian 09w, please feel free to contact me or leave a comment below. Thank you for reading! ? dcd2dc6462