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#1
Output files / Re: ENERGY DRIFT
Last post by neumannrf - April 10, 2024, 12:28:49 AM
Dear Dr. Dubbeldam,

We are having a similar problem with C2H2 and would like to try your suggestion, but we could not find in the manual how to set up a hard-sphere potential on the Hydrogen. What are the keyword and parameters?
#2
General / The name of RASPA
Last post by sara abbasi - March 18, 2024, 08:07:55 PM
Hello everyone
In RASPA name, what does each capital letter mean?
I appreciate all your kind responses.
Thank you
Sara
#3
General / Installation on ubuntu
Last post by Aleksandr Volkov - March 09, 2024, 11:48:36 AM
Good afternoon!
Faced with the problem of installing on ububntu, I understand you need to install as written in the manual or differently? Is there an instruction for installing on ububntu?
#4
General / Defining a parametric flexible...
Last post by gunjanauti - January 23, 2024, 11:08:35 AM
How can I define a flexible molecules in a def file such that bond length between 0-3 is a function of bond lengths of 0-1 and 0-2 and the angle between 0-1-2? (d3 = d1cos(theta) + d2cos(theta)).
How can we use functions in .def file? And being a flexible model, this length should change every timestep, but since the .def file is only read at the start of this simulation, is there any other way to define this molecule?
#5
General / Here is Practical Explanation ...
Last post by kama-devah - December 31, 2023, 01:02:14 PM
Practical Explanation ( For Example ) :- `1st of all can you tell me every single seconds detail from that time when you born ?? ( i need every seconds detail ?? that what- what you have thought and done on every single second )

can you tell me every single detail of your `1 cheapest Minute Or your whole hour, day, week, month, year or your whole life ??

if you are not able to tell me about this life then what proof do you have that you didn't forget your past ? and that you will not forget this present life in the future ?

that is Fact that Supreme Lord Krishna exists but we posses no such intelligence to understand him.
there is also next life. and i already proved you that no scientist, no politician, no so-called intelligent man in this world is able to understand this Truth. cuz they are imagining. and you cannot imagine what is god, who is god, what is after life etc.
_______
for example :Your father existed before your birth. you cannot say that before your birth your father don,t exists.

So you have to ask from mother, "Who is my father?" And if she says, "This gentleman is your father," then it is all right. It is easy.
Otherwise, if you makes research, "Who is my father?" go on searching for life; you'll never find your father.

( now maybe...maybe you will say that i will search my father from D.N.A, or i will prove it by photo's, or many other thing's which i will get from my mother and prove it that who is my Real father.{ So you have to believe the authority. who is that authority ? she is your mother. you cannot claim of any photo's, D.N.A or many other things without authority ( or ur mother ).

if you will show D.N.A, photo's, and many other proofs from other women then your mother. then what is use of those proofs ??} )

same you have to follow real authority. "Whatever You have spoken, I accept it," Then there is no difficulty. And You are accepted by Devala, Narada, Vyasa, and You are speaking Yourself, and later on, all the acaryas have accepted. Then I'll follow.
I'll have to follow great personalities. The same reason mother says, this gentleman is my father. That's all. Finish business. Where is the necessity of making research? All authorities accept Krsna, the Supreme Personality of Godhead. You accept it; then your searching after God is finished.

Why should you waste your time?
_______
all that is you need is to hear from authority ( same like mother ). and i heard this truth from authority " Srila Prabhupada " he is my spiritual master.
im not talking these all things from my own.
___________

in this world no `1 can be Peace full. this is all along Fact.

cuz we all are suffering in this world 4 Problems which are Disease, Old age, Death, and Birth after Birth.

tell me are you really happy ?? you can,t be happy if you will ignore these 4 main problem. then still you will be Forced by Nature.
___________________

if you really want to be happy then follow these 6 Things which are No illicit s.ex, No g.ambling, No d.rugs ( No tea & coffee ), No meat-eating ( No onion & garlic's )

5th thing is whatever you eat `1st offer it to Supreme Lord Krishna. ( if you know it what is Guru parama-para then offer them food not direct Supreme Lord Krishna )

and 6th " Main Thing " is you have to Chant " hare krishna hare krishna krishna krishna hare hare hare rama hare rama rama rama hare hare ".
_______________________________
If your not able to follow these 4 things no illicit s.ex, no g.ambling, no d.rugs, no meat-eating then don,t worry but chanting of this holy name ( Hare Krishna Maha-Mantra ) is very-very and very important.

Chant " hare krishna hare krishna krishna krishna hare hare hare rama hare rama rama rama hare hare " and be happy.

if you still don,t believe on me then chant any other name for 5 Min's and chant this holy name for 5 Min's and you will see effect. i promise you it works And chanting at least 16 rounds ( each round of 108 beads ) of the Hare Krishna maha-mantra daily.
____________
Here is no Question of Holy Books quotes, Personal Experiences, Faith or Belief. i accept that Sometimes Faith is also Blind. Here is already Practical explanation which already proved that every`1 else in this world is nothing more then Busy Foolish and totally idiot.
_________________________
Source(s):
every `1 is already Blind in this world and if you will follow another Blind then you both will fall in hole. so try to follow that person who have Spiritual Eyes who can Guide you on Actual Right Path. ( my Authority & Guide is my Spiritual Master " Srila Prabhupada " )
_____________
if you want to see Actual Purpose of human life then see this link : ( triple w ( d . o . t ) asitis ( d . o . t ) c . o . m {Bookmark it })
read it complete. ( i promise only readers of this book that they { he/she } will get every single answer which they want to know about why im in this material world, who im, what will happen after this life, what is best thing which will make Human Life Perfect, and what is perfection of Human Life. ) purpose of human life is not to live like animal cuz every`1 at present time doing 4 thing which are sleeping, eating, s.ex & fear. purpose of human life is to become freed from Birth after birth, Old Age, Disease, and Death.
#6
Output files / Re: heat of adsorption method ...
Last post by dddD - December 23, 2023, 04:34:20 AM
I want to know, too!
#7
General / Can anyone recommend some lite...
Last post by WuJH - December 21, 2023, 04:03:29 PM
Dear professors:
Can anyone recommend some literatures that can use raspa to reproduce the GCMC simulation process´╝č
Thanks very much!
#8
Output files / heat of adsorption method in G...
Last post by Nourissa - December 19, 2023, 01:02:34 PM
I am trying to find the equation or method that is used to compute heat of adsorption in GCMC. if anyone knows please share a reference paper.
#9
General / Inaccurate Adsorption Isotherm...
Last post by sridhar - November 24, 2023, 07:51:38 AM
Dear Prof. Dubbeldam and RASPA community,

I would like to calculate the adsorption isotherm for hydrogen at 77K on IRMOF-1. The absolute adsorption uptake of the RASPA results showed higher values, almost two times more at high pressures (i.e., 100 bar) compared to the experimental results and GCMC calculations in the literature. I am sure that the force-field interactions taken are accurate. The forcefield, pseduoatoms, molecule files, simulation.input used in my RASPA calculations are given below. The IRMOF-1 cif file was used from RASPA software (i.e., raspa/structures/mofs/cif/IRMOF-1.cif). Can you please go through the input files and let me know incase any issues?

1. Simulation.input

SimulationType                MonteCarlo
NumberOfCycles                100000
NumberOfInitializationCycles  50000
PrintEvery                    5000
RestartFile                   no

Forcefield                    ExampleMOFsForceField

Framework 0
FrameworkName IRMOF-1
UnitCells 1 1 1
HeliumVoidFraction 0.81
ExternalTemperature  77
ExternalPressure  100e5


Component 0 MoleculeName             H2
            MoleculeDefinition       ExampleDefinitions
            TranslationProbability   0.5
            RotationProbability      0.5
            ReinsertionProbability   0.5
            SwapProbability          1.0
            CreateNumberOfMolecules  0

2. pseudoatoms file

#number of pseudo atoms
6
#type      print   as    chem  oxidation   mass        charge   polarization B-factor radii  connectivity anisotropic anisotropic-type   tinker-type
C          yes     C     C     0           12.0        0.0      0.0          1.0      0.67   0            0           relative           0
H_h2       yes     H     H     0           1.01588     0.468    0.0          1.0      0.53    0            0           relative           0
H_com      no      H     -     0           0.0         -0.936   0.0          1.0      0.53    0            0           relative           0
H          yes     H     H     0           1.01588      0       0.0          1.0      0.53    0            0           relative           0
Zn         yes     Zn    Zn    0           65.39       1.8529       0.0          1.0      1.42    0            0           relative           0
O          yes     O     O     0           15.9994     -1.6       0.0          1.0      0.48    0            0           relative           0 


3. force_field_mixing_rules.def

# general rule for shifted vs truncated
shifted
# general rule tailcorrections
no
# number of defined interactions
6
# type interaction
Zn_            lennard-jones    62.4       2.46          // D. Dubbeldam, K.S. Walton, D.E. Ellis, R.Q. Snurr, Angew. Chem. Int. Ed. 2007, 46, 4496-4499.   
O_             lennard-jones    30.19      3.12         // idem
C_             lennard-jones    52.84      3.43         // idem
H_             lennard-jones    22.14      2.57         // idem
H_h2            lennard-jones    15        2
H_com          none
# general mixing rule for Lennard-Jones
Lorentz-Berthelot

4. H2.def file

# critical constants: Temperature [T], Pressure [Pa], and Acentric factor [-]
33
1300000.0
-0.216
#Number Of Atoms
3
# Number of groups
1
# H2-group
rigid
# number of atoms
3
# atomic positions
0 H_h2    0.0           0.0           0.37
1 H_com   0.0           0.0           0.0
2 H_h2    0.0           0.0          -0.37
# Chiral centers Bond  BondDipoles Bend  UrayBradley InvBend  Torsion Imp. Torsion Bond/Bond Stretch/Bend Bend/Bend Stretch/Torsion Bend/Torsion IntraVDW IntraCoulomb
               0    2            0    0            0       0        0            0         0            0         0               0            0        0            0
# Bond stretch: atom n1-n2, type, parameters
0 1 RIGID_BOND
1 2 RIGID_BOND
# Number of config moves
0

#10
General / Enthalpy of adsorption
Last post by Mohammad Ahmadi - November 21, 2023, 12:01:00 AM
Hi.
How can I calculate the enthalpy of adsorption in the state of adsorption on the adsorbent with extra cation?
The software is not able to calculate the enthalpy for adsorption in this case.