NMR staff position opening

We are seeking a bioNMR scientist to join us managing our Metacyt bioNMR lab. Please follow the link https://indiana.peopleadmin.com/postings/22784 for the job description and apply for this job online there.

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Remote Access to Varian Spectrometer Computers

All computers controlling Varian NMR spectrometers (i600, i500, and i400) are on the Legacy VLAN network. To remotely access these computers via SSH/SFTP using WinSCP, Cyberduck or other programs from your computers, follow the instructions below.

1) If your computer is connected to the network inside the Chemistry or Simon Hall buildings with wired connection, you would be able to access these NMR computers directly.

2) If your computer is connected to a network with wireless connections (WiFi or cellular data), even via the WiFi inside the Chemistry or Simon Hall buildings, you would need to access these NMR computers through IU Groups VPN with Ivanti Secure Access.

3) If your computer is connected to a network outside the Chemistry and Simon Hall buildings (on or off-campus) with wired or wireless connections, you would need to use Ivanti Secure Access via the IU Groups VPN connection for access to these NMR computers.

To set up Ivanti Secure Access for this purpose, you need to add a connection for IU Groups VPN. Please see the instructions on the IU Knowledge Base https://kb.iu.edu/d/aygt. Server URL should be filled with https://vpn.iu.edu/groups instead of https://vpn.iu.edu. The latter is for general IU VPN which does not work for accessing Varian spectrometer computers in the NMR facility.

The number of connections to the IU Groups VPN is very limited. Use it only when you need to access Varian spectrometer computers (i600, i500, and i400). Disconnect the IU Groups VPN as soon as your data transfer is complete.

To access Bruker spectrometer computers (B600 and B500) or any other IU restricted resources including the IU-only portion of the NMR facility website (such as NMR time reservation), you should use general IU VPN if your device is connected to an off-campus network. If your device is connected to the IU campus network (wired or wireless), no need to use VPN.

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M200 is retired

Varian Mercury 200 MHz NMR System

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V800 is retired

Varian 800 MHz NMR System

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Vxr400 is retired

Varian Inova 400 MHz NMR System

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2D NMR Training, October, 2022

We will be doing 2D NMR training next week at the following times: 

October 12, Wednesday, 11:00 am – 1:00 pm;

October 12, Wednesday, 3 pm – 5 pm;

October 13, Thursday, 11:00 am – 1:00 pm;

October 13, Thursday, 3:00 pm – 5:00 pm;

October 14, Friday, 11:00 am – 1:00 pm;

October 14, Friday, 3:00 pm – 5:00 pm.

These will be single two-hour sessions. I will discuss the basic concepts of 2D NMR followed by the setup, acquisition, processing, and plotting of the common 2D NMR 1H-1H and 1H-13C experiments including COSY, TOCSY, NOESY/ROESY, HMQC/HSQC, and HMBC/CIGAR. The number of attendees in each session will be limited to four. Please sign up using the online sign-up sheet if you plan to attend

The maximum occupancy of each training session is four students. The sign-up form will be closed on Tuesday (10/11) at 5:00 pm. So, if you are interested, please, sign-up for the training ASAP.

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Solvent Selection on B500

Unlike VnmrJ software on Varian spectrometers which contains only deuterated solvents in the solvent list, IconNMR software on the B500 contains both deuterated and non-deuterated solvents in the solvent list. All non-deuteared solvents are marked with “non-deuterated” following the solvent names, therefore are easy to distinguish. Here is a example:

“CD3CN acetonitrile-d3”   —   this is deuterated
“CH3CN acetonitrile, non-deutareated”   —   this is non-deuterated

For a sample in deuterated solvent (almost all of the samples for NMR measurement use deuterated solvents) , you must select a matched deuterated solvent (CD3CN in this example). Selecting a non-deuterated solvent (CH3CN in this example) would result in failures of locking and/or shimming and consequently failure of the experiment. Do not make this mistake.

Update 2022/9/21: All non-deuterated solvents were removed from the solvent list to avoid possible confusion.

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2D NMR Training

We will be doing 2D NMR training in the next week:
 September 15, Wednesday, 11:00 am – 1:00 pm; (Canceled)
 September 15, Wednesday, 3 pm – 5 pm; (Canceled)
 September 16, Thursday, 11:00 am – 1:00 pm;
 September 16, Thursday, 3:00 pm – 5:00 pm;
 September 17, Friday, 11:00 am – 1:00 pm;
 September 17, Friday, 3:00 pm – 5:00 pm.

These will be single two-hour sessions. I will discuss the basic concepts of 2D NMR followed by the setup, acquisition, processing, and plotting of the common 2D NMR 1H-1H and 1H-13C experiments including COSY, TOCSY, NOESY/ROESY, HMQC/HSQC, and HMBC/CIGAR. The number of attendees in each session will be limited to four. If you plan to attend, please sign up using the online sign-up sheet.

For any inquiries regarding the training, email me at atapash@iu.edu.

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C237 Closed until Tuesday 6pm

In response to a COVID case involving the C237 NMR lab, the C237 will be closed immediately until Tuesday (1/19) 6pm. Please do not enter this room during this period of time. The room will reopen on Tuesday 6pm.

The C234F is not affected and will keep opening. The I600 in C234F is available to users.

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B500 User Training Sign-up

B500 user training sign-up sheets for next two weeks are available online (http://nmr.chem.indiana.edu/cgi-bin/MAG_RES/b500_training_signup_w1.pl). Please sign up ASAP, at least one day in advance of your preferred time.

Each user should sign up for one time slot only. If you make changes to your signed time slot, please remember to cancel your previously signed time slot to make it available to other users.

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