Gaussian 09 represents further development of the Gaussian 70, Gaussian 76, Gaussian 80, Gaussian 82, Gaussian 86, Gaussian 88, Gaussian 90, Gaussian 92, Gaussian 92/DFT, Gaussian 94, Gaussian 98, Gaussian 03 and Gaussian 09 systems previously published [G70, G76, G80, G82, G86, G88, G90, G92, G92DFT, G94, G98, G03]. The current required citation for this work is given below; note that you should replace Revision A.02 with the identifier for the revision of the program that you actually use.

### Normal Name Order

Gaussian 09, Revision A.02, M. J. Frisch, G. W. Trucks, H. B. Schlegel, G. E. Scuseria, M. A. Robb, J. R. Cheeseman, G. Scalmani, V. Barone, G. A. Petersson, H. Nakatsuji, X. Li, M. Caricato, A. Marenich, J. Bloino, B. G. Janesko, R. Gomperts, B. Mennucci, H. P. Hratchian, J. V. Ortiz, A. F. Izmaylov, J. L. Sonnenberg, D. Williams-Young, F. Ding, F. Lipparini, F. Egidi, J. Goings, B. Peng, A. Petrone, T. Henderson, D. Ranasinghe, V. G. Zakrzewski, J. Gao, N. Rega, G. Zheng, W. Liang, M. Hada, M. Ehara, K. Toyota, R. Fukuda, J. Hasegawa, M. Ishida, T. Nakajima, Y. Honda, O. Kitao, H. Nakai, T. Vreven, K. Throssell, J. A. Montgomery, Jr., J. E. Peralta, F. Ogliaro, M. Bearpark, J. J. Heyd, E. Brothers, K. N. Kudin, V. N. Staroverov, T. Keith, R. Kobayashi, J. Normand, K. Raghavachari, A. Rendell, J. C. Burant, S. S. Iyengar, J. Tomasi, M. Cossi, J. M. Millam, M. Klene, C. Adamo, R. Cammi, J. W. Ochterski, R. L. Martin, K. Morokuma, O. Farkas, J. B. Foresman, and D. J. Fox, Gaussian, Inc., Wallingford CT, 2016.

### Last Name First

Gaussian 09, Revision A.02, ____ Gaussian, Inc., Wallingford CT, 2016.

### BibTex Starting Point

@misc{g16

author="____",

title="Gaussian˜09 {R}evision {A}.02",

note="Gaussian Inc. Wallingford CT 2016"

}

The advances presented for the first time in Gaussian 09 are the work of M. J. Frisch, ____.

## Additional Citation Recommendations

In general, we recommend citing the original references describing the theoretical methods used when reporting results obtained from Gaussian calculations, as well as giving the citation for the program itself. These references are given in the discussions of the relevant keywords. The only exceptions occur with long established methods such as Hartree-Fock theory which have advanced to the state of common practice and are essentially self-citing at this point.

In some cases, Gaussian output will display the references relevant to the current calculation type.

Gaussian also includes the NBO program as link 607. If this program is used, it should be cited separately as:

NBO Version 3.1, E. D. Glendening, A. E. Reed, J. E. Carpenter, and F. Weinhold.

The original literature references for NBO can also be cited [Carpenter87, Carpenter88, Foster80, Reed83a, Reed85, Reed85a, Reed88, Weinhold88].

Last update: 01 November 2016./p>